AAU Journal of Business Educators ( AAUJBE) Vol. 4 No.1, January/ February 2024
THE INFLUENCE OF JOB RESOURCES ON JOB PERFORMANCE WITH WORK
ENGAGEMENT AS A MEDIATING VARIABLE: A STUDY OF VOCATIONAL
BUSINESS EDUCATORS IN PUBLIC UNIVERSITIES IN SOUTH-SOUTH, NIGERIA
JAMES EDOMWONYI EDOKPOLOR1*, PATIENCE OSEBHAKHOMEN IMEOKPARIA2,
JANE NWAKEGO EGBRI3
1,2
DEPARTMENT OF BUSINESS EDUCATION, AMBROSE ALLI UNIVERSITY, EKPOMA,
NIGERIA
3
Department of Vocational and Technical Education, University of Benin, P.O. Box 1154, Benin
City, Edo State, Nigeria
*Corresponding Author: james.edokpolor@aauekpoma.edu.ng
To cite this article (APA): Edokpolor, J. E., Imeokparia, P. O., & Egbri, J. N. (2024). The influence
of job resources on job performance with work engagement as a mediating variable: A study of
vocational business educators in public universities in South-South, Nigeria. AAU Journal of
Business Educators, 4(1), 147-169
Abstract
Launching and managing a vocational business venture is one of the greatest legacy an individual
can bequeath for him/herself at this present time in Nigeria. Yet, there is chronic shortage of
enterprising individuals and the situation is further compounded by insufficient vocational business
educators and instructors who would help to prepare individuals to launch and manage a vocational
business ventures and continuously improve their knowledge and skills. A number of vocational
business educators perform poorly on the job and has negatively influence the workforce needs of
the entrepreneurial sector and vocational business education programme. Addressing the issue of
poor performance of vocational business educators on the job is particularly important not only to
respond to the chronic shortage of vocational business educators but also the deficit of enterprising
individuals. It is important to ensure that vocational business educators receive sufficient or
abundance resources and engaged at work because of the positive impact these job situations
contribute to job performance. Considering the importance of vocational business educators to the
entrepreneurial sector, there is need to examine the influence of job resources on vocational
business educators job performance with work engagement as a mediating variable. The purpose of
this study therefore is to examine the relationships between job resources, work engagement, and
job performance of vocational business educators in the universities in South-South, Nigeria. The
findings indicated positive correlation between job resources, work engagement and job
performance. The findings also indicated that work engagement fully mediated the relationship
between job resources and job performance. This research builds on the work of previous scholars
by further supporting the relationships between job resources, work engagement and job
performance specifically in the context of vocational business educator. University administrators
and managers play a role in ensuring that strategies are in place to motivate and engage vocational
business educators as practical ways to reduce poor performance. In particular, university
administrators and managers should recognize vocational business educators’ contributions,
provide career development opportunities, and promote challenging responsibilities and autonomy
within the classroom and university. It is critical to have adequate and qualified vocational business
educators to prepare individuals to engage in entrepreneurial careers and lifelong learning.
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Introduction
Possessing requisite knowledge and skills to launch and manage a vocational business
venture is one of the important legacy an individual can bequeath for him/herself in Nigeria at this
present time. Despite the importance of acquiring requisite knowledge and skills to launch and
manage a vocational business venture, there is chronic shortage of competent and qualified
vocational business educators in Nigeria (Edokpolor & Owenvbuigie, 2017), who would have help
in executing the tasks of imparting requisite knowledge, conducting quality research, managing
adequate resources, including other secondary job responsibilities. However, performing these
numerous and complex job responsibilities has, in turn, put a strain on the vocational business
educators (Sheppard, 2016; Ile & Edokpolor, 2022; Edokpolor & Imeokparia, 2022). As such, the
tendency of vocational business educators to be performing poorly on the job may be one of the
primary reasons many students are ill-equipped with the requisite knowledge and skills to launch
and manage a vocational business venture, despite the importance of entrepreneurial careers to
sustainable development of the nation’s economy. With the advent of a constantly changing work
environment, the need for vocational business education management and knowledge and skills
acquisition increases and vocational business educators play a major role in managing quality
vocational business education programme and equipping students with the requisite knowledge and
skills for a vocational business venture startup and management upon graduation. The gap between
the knowledge and skills acquired by students and the knowledge and skills required by students to
launch and manage vocational business ventures will negatively affect the quality management of
vocational business education system and more broadly the sustainable development of the nation’s
economy. Therefore, it is critical to have enough and highly trained vocational business educators.
Vocational business education is a competency-based programme that is planned and
organized to equip students with specific career skills especially in post-secondary institutions. It
prepares both youths and young adults for a wide range of early careers in professional and
occupational sub-disciplines, or in a related field in the industry. Vocational business education also
prepares individuals to take a teaching job in numerous occupations including vocational businessrelated careers. Some of the skills students may acquire in the vocational business education
programme include office management and technology skills, marketing skills, and accounting
skills, among others (Edokpolor & Oduma, 2018). The possessions of these skills are foundational to
vocational business education graduates in that it reinforces their interest for a more advanced
vocational business education programmes (Igbinedion, Edokpolor & Oyenuga, 2015; Edokpolor &
Omiunu, 2017; Edokpolor & Muritala, 2018). Although part of the vision and mission of vocational
business education managers and administrators includes the production of competent and qualified
vocational business educator as this will help to alleviate the chronic shortage of competent and
qualified vocational business educators in Nigeria (Edokpolor & Imafidon, 2017; Edokpolor, 2019).
If not addressed soon, this deficiency will negatively influence the workforce needs of the vocational
business education programme.
In general, many vocational business educators in public universities in Nigeria perform
poorly on the job for several reasons. For instance, empirical research reported a significant
relationship between hindrance job demands and poor job performance (Bakker, Demerouti & SanzVergel, 2014; Tadić, Bakker & Oerlemans, 2014; Tadić, Oerlemans & Bakker, 2014; Cross, 2019;
Schilbach, Baethge & Rigotti, 2021; Edokpolor & Oviawe, 2022a&b; Edokpolor, Imeokparia &
Egbri, 2023; Fernandez de Henestrosa, Sischka & Steffgen, 2022, 2023). Another empirical research
demonstrated a significant relationship between lack of job resources and poor job performance
(Schaufeli & Taris, 2014; Anjum, Ming, Siddiqi & Rasool, 2018; Naidoo-Chetty & du Plessis, 2021;
Ile & Edokpolor, 2021; Edokpolor & Oviawe, 2022b; Edokpolor, Imeokparia & Ediagbonya, 2023;
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Adekiya, 2023). Yet, other empirical research reported a significant relationship between work
burnout and poor job performance (Chiaburu, Peng, Oh, Banks & Lomeli, 2013; Lizano, 2015;
Maslach & Leiter, 2016; Bang & Reio, 2017; Sastre-Morcillo, Blanco-Encomienda & LatorreMedina, 2022; Edopkolor, Legg-Jack & Imeokparia, 2022; Bhat & Tariq, 2022; Edokpolor,
Imeokparia & Asemota, 2023).
Some empirical research further reported a significant relationship between low self-efficacy
and poor job performance (Del Libano, Llorens, Salanova & Schaufeli, 2012; Hidayat & Panjaitan,
2022; Kanapathipillai, Shaari & Mahbob, 2021; Ile & Edokpolor, 2022; Wijayana, Rahayu &
Wahyuningsih, 2022; Annisa & Ginarti, 2023; Jumaharta & Irbayuni, 2023; Utami & Mujanah,
2023). Other empirical research also reported a significant relationship between poor job satisfaction
and poor job performance (Kumari, 2011; Jaradat, 2020; Rahmizal & Dewi, 2022; Yean, Johari,
Yahya & Chin, 2022; Inayat & Khan, 2023). Yet, some other empirical research reported a
significant relationship between poor work engagement and poor job performance (Kim, Kolb &
Kim, 2013; Karatepe, Beirami, Bouzari & Safavi, 2014; Wood, Oh, Park and Kim, 2020; Edopkolor,
Chukwuemeke & Osifo, 2022; Edokpolor & Owenvbuigie, 2022; Yao, Qiu, Yang, Han & Li, 2022).
Job resources is one of the most studied topics in work and organizational psychology
literature because of its positive impact on employees behavioural outcomes in general and job
performance in particular (Schaufeli & Taris, 2014; Bakker, Demerouti & Sanz-Vergel., 2023). It is
concerned with the working conditions involving specific resources that represent physical, social or
organizational aspect of the job that might help reduce job demands and the associated physiological
and psychological costs (Van den Broeck, Van Ruysseveldt, Vanbelle & de Witte, 2013). Job
resources consist of environmental characteristics of the job that serve as a key predictor of work
engagement of vocational business educators (Edopkolor & Imeokparia, 2022). Literature has shown
that resourceful individuals are likely to be more engaged at work resulting in increased behavioural
outcomes (Baldoni, 2013; Quantum Workplace, nd). In the human resource management and
organizational psychology literature, engaged employees are individuals who express themselves
physically, cognitively and emotionally during job performance (Khan, 1990; Edokpolor &
Owenvbuigie, 2022). The authors of this research therefore theorized that vocational business
educators who are engaged at work can be described as having the same attributes, in turn, are less
likely to perform poorly on the job.
In today’s dynamic working environment, it is important to ensure that vocational business
educators receive adequate job resources and are engaged at work because of the level of effort and
energy they put in accomplishing the goals of vocational business education. Little research has been
done on the job performance of vocational business educators. Although, research has been
conducted on talent management strategies such as selection, development and retention of talented
vocational business educators and how they can help the vocational business education to
accomplish the best possible result (Edokpolor, 2019). Research has also been conducted on job
resources and its positive influence on prosocial behaviour of technical and vocational education and
training lecturers (Edokpolor & Oviawe, 2022b). More recently, research was conducted on working
environment dimensions such as job demands working environment and job resources working
environment and their impact on vocational business educators’ behavioural outcomes such as job
performance and prosocial behaviour. However, the factors influencing vocational business
educators to perform better on the job needs further research (Edopkolor et al., 2022; Edokpolor et
al., 2023). Considering the importance of vocational business educators’ job performance to the
vocational business education workforce and sustainable development of the nation’s economy,
there is a need to examine job resources and work engagement and the impact this may have on job
performance. While job resources, work engagement and job performance have been studied
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extensively, these variables have not been examined together in the context of vocational business
educators despite the existence of poor job performance and the significance of resourceful and
engaged vocational business educators.
This research will address a gap in the literature and provide insight to the university
administrators and managers. It will provide insight on how job resources positively influence the
job performance of staff as a result of work engagement. This research will also provide insight on
how staff working environment needs to be highly resourceful and engaging at all times. It will also
provide insight on how to make informed decisions about where and when to utilize resources in
that staff will be performing their job in a more resourceful and engaging work environment.
Providing opportunity for staff especially the vocational business educators to perform better on the
job will have an impact on the future labour market projections and sustainable development of the
nation’s economy. The purpose of this research is to investigate the influence of job resources on job
performance of vocational business educators with work engagement as an intervening variable. The
following questions need to be addressed in this research:
1. What is the relationship between job resources, work engagement, and job performance of
vocational business educators?
2.What is the mediating influence of work engagement in the relationship between job resources and
job performance?
Details are provided on the following sections (1) the development of conceptual model (2)
the theoretical framework (3) the hypotheses proposition (4) the method and procedure (5) the result
and discussion (6) the implications (7) conclusions and (8) recommendations.
Development of Conceptual Model
The authors developed a conceptual model (see Figure 1) to support the research. The
conceptual model described the association between job resources, work engagement and job
performance of vocational business educators. The authors developed the conceptual model upon
which the hypothetical propositions of all the variables and the mediating effect are based.
Figure 1. Conceptual Model of Hypothesized Relationships between Job
Resources and Job Performance with Work Engagement as a Mediator
The underlying assumptions of this research is that there will be a significant positive
relationship between job resources, work engagement and job performance; and that work
engagement will fully mediate the relationship between job resources and job performance. These
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assumptions are fully supported by the Job Demands-Resources (JD-R) model proposed by
Demerouti, Bakker, Nachreiner and Schaufeli (2001).
Theoretical Framework
The research is underpinned by the JD-R model proposed by Demerouti et al., (2001). The
JD-R model is used in this research to understand how job resources and work engagement
positively influence the job performance of employees. One of the proposition of the JD-R model is
that every occupation or profession has its own specific motivational factor associated with work
functioning, which include job resources. Demerouti, et al., (2001) depicted that job resources that
are high are experience by employees as positive because their motivational, effective, and
functioning role is increased as an outcome or consequence. The JD-R model is relevant to this
research because it proposed a related psychological process such as the motivational process in
which job resources can reinforce work engagement, in turn, positively influence job performance.
The JD-R model is related to this research in that when vocational business educators experience
high job resources, they will equally experience high work engagement. When vocational business
educators experience high work engagement, they will equally experience better job performance.
When vocational business educators experience high job resources, they will equally experience
better job performance. Furthermore, the relationship between high job resources and better job
performance will be as a result of high work engagement.
Hypotheses Development
Influence of Job Resources on Work Engagement
An existing study showed that job resources contribute to the work engagement of
employees that provide or receive job resources (Ryan & Martela, 2016). More than four decades
ago, Hackman and Oldham (1980) developed the job characteristics theory. They proposed five job
characteristics, which they argued to enhance the motivational potential of the job and positively
influence salient work-related outcomes such as work engagement. These five job characteristics
include the skills variety (that is, the degree to which a job require various activities, enabling
employees to develop a variety of skills), task identity (that is, the degree to which a job require
doing a whole and identifiable piece of work from the beginning to the end), task significance (that
is, the degree to which a job impact other people’s lives), job autonomy (that is, the level of
freedom, independence, control and discretion in carrying out a job) and performance-based
feedback (that is, the degree to which job activities provide employees with direct and clear
information about the effectiveness of their job performance).
The JD-R theory proposes a positive interplay between job resources and work engagement
(Bakker & Demerouti, 2014). Specifically, the JD-R theory depicted that job resources are
particularly motivating and related to work engagement when challenges are low and when
hindrances are high. However, there are some empirical research supporting these assumptions
(Tadić, Bakker & Oerlemans, 2015; Reina-Tamayo, Bakker & Derks, 2017), but there is a limited
empirical support that use Nigeria as a case study. Job resources may indeed positively associate
with work outcomes such as work engagement. Empirical research has indeed specifically showed
that job resources such as colleagues support make a positive contribution to the work engagement
of employees (Bakker, et al., 2014) and reduce the stressful impact of hindrance job demands on
stressful reactions. Although, early versions of the JD-R theory proposed that job resources such as
job autonomy, performance feedback and variety of skills utilization are the most important
antecedents of work engagement. On the basis of existing research within the JD-R framework,
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organizational context in the form of job resources play an important role in fostering work
engagement (Van der Heijden & Bakker, 2011).
Furthermore, Tadic, et al., (2015) examined the role of job resources in the context of the
challenge-hindrance stressors framework that focused on work well-being dimension that is closely
related to work engagement. Lecturers were asked to fill a work engagement questionnaire. The
findings showed that job resources such as opportunities for career or self-growth, coaching and
performance feedback had influence on work engagement. Taken together, these findings have
suggested that colleagues/HODs support is more important when employees are challenged in their
work and experience the job resources to deal adequately with these challenges. Within this
relationship and subsequent research on work engagement, job resources are identified as having the
potential role to positively impact work engagement. Therefore, the authors of this research expect a
significant and positive relationship between job resources and work engagement of vocational
business educators in public universities in South-South Nigeria.
Hypothesis 1: Job resources will positively relate to work engagement.
Influence of Work Engagement on Job Performance
Over the years, empirical research has revealed a positive relationship between work
engagement and job performance (Demerouti & Cropanzano, 2010). Research have shown that
employees who are engaged on the job are highly energetic and efficacious and represent individuals
who exercise influence over events that affect their lives (Bakker, 2011). Because of their positive
attitude and high activity level, employees who are engaged on the job will create their own positive
feedback in terms of recognition, appreciation and success. Not surprisingly, work engagement is a
better predictor of job performance than job satisfaction or workaholic (Bakker, 2011). The JD-R
theory proposed a positive interplay between work engagement and job performance (Bakker &
Demerouti, 2014).
Rigorous research showing a positive interplay between work engagement and job
performance are constantly increasing. For instance, Sante, Eaton and Viswesvaran (2021) found
that employees who are engaged on the job receive higher ratings from their colleagues on task and
contextual performance. This result implied that employees who are engaged on the job perform
better and are willing to work beyond their primary job responsivities. In a research of employees
working in Spanish restaurants and hotels, Gil-Beltrán, Llorens and Salanova (2020) found that
employees’ ratings of their work engagement where positively related to customer ratings of job
performance. In an empirical research of employees working in fast food restaurants in Greece,
Bakker, Rodríguez-Muñoz and Sanz-Vergel (2015) found a compelling case for the predictive value
of work engagement for job performance. Participants were asked to fill in a diary and survey
booklet. Consistent with the hypotheses testing, the result showed that employees who were more
engaged on the job were characterized by abundance job resources. In an experimental study,
Christian, Garza and Slaughter (2011) found a positive interplay between high work engagement
and better job performance. More specifically, Bakker and Bal (2010) found that teachers who are
engaged on the job received higher ratings on task performance from their supervisors compared to
their colleagues who are not engaged on the job. Therefore, the authors of this research expected a
significant and positive relationship between work engagement and job performance of vocational
business educators in public universities in South-South Nigeria.
Hypothesis 2: Work engagement will positively relate to job performance.
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Influence of Job Resources on Job Performance
It has been suggested by Zafar-Uz-Zaman, Lou, Muhammad and Arslan (2014) that job
resources will predict job performance to be influenced by five job characteristics (that is, skills
variety, task identity, task significance, job autonomy and performance feedback). Based on the
Hackman and Oldham (1980) job characteristics theory (JCT), there seem to be a salient interplay
between the five motivating job characteristics as listed above and job performance. More than four
decades ago, Hackman and Oldham (1980) developed the JCT and proposed that the five job
characteristics may enhance the motivational potential of jobs and positively influence job
performance. These job characteristics involves enabling the worker to develop a variety of skills
and talents; the degree to which the job requires doing a whole and identifiable piece of work from
beginning to end; the degree to which the job impacts other employee’s lives; the level of freedom,
independence, and discretion in carrying out the job; and the degree to which job activities provide
employees with direct information about the effectiveness of job performance.
Mäkikangas, Bakker, Aunola and Demerouti (2010) reported that mean levels of job
resources and job performance and changes in both variables are positively related to each other.
Vocational business educators who experience high level of job resources will equally experience
better job performance. Moreover, when job resources increased over time, the job performance of
vocational business educators can as well increase. To substantiate this assumption, empirical
research has indeed showed that job resources can make a positive contribution to job performance
(Bakker, et al., 2014). Besides, an empirical research by Wood, Veldhoven, Croon and deMenezes
(2012) indicated that significant positive relationships exist between job resources and the job
performance of employees. This implied that job resources, which represent an important
component of job characteristics, will influence better job performance of business educators.
More importantly, job resources refer to the endowments and the facilities provided by
organizations that assist employees in accomplishing work goals, reducing job demands and
fostering work engagement, which may lead to improved job performance of employees. Job
characteristics have been defined as a set of environmental variables that are widely thought to be
important antecedents of job performance of employees (Matilu & K’Obonyo, 2018). This implied
that job resources may allow employees to seize the opportunity to utilize variety of skills to
perform the job, identify themselves closely with the job completed, feel empowered in performing
the job through the freedom obtained from the job and get adequate feedback on the job done. Job
resources may also help to induce employees’ growth and development through a motivational
process and been able to be used in accomplishing work goals. The authors of this research therefore
examined the influence of job resources on job performance through work engagement. However,
the influence of job resources on better job performance is poorly assessed in the human resource
management and organizational psychology literature. Therefore, the authors of this research
expected a significant and positive relationship between job resources and job performance of
vocational business educators in public universities in South-South Nigeria.
Hypothesis 3: Job resources will positively relate to job performance.
The Mediating Influence of Work Engagement
In this research, work engagement may act as a mediator variable between job resources and
the job performance of vocational business educators in public universities in South-South Nigeria.
The theoretical view of the mediating role of work engagement can be explained and understood
from the social exchange theory (Blau, 1964; Emerson, 1976; Homans, 1958). This theory proposed
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that when the employer and employees abide by exchange rules, they will have a more trusting and
loyal relationship. This is because social exchange consists of the actions contingent on the
rewarding reactions of others (for example, employer and employees) which over time provide for
mutually and rewarding transactions and relationships. Accordingly, employees who are engaged on
the job continue to enact or lend themselves fully on the job because of the continuation of
favourable reciprocal exchanges. Employees who are provided with job enrichment and work
environment may feel obliged to express themselves on the job as a repayment for the resources they
receive from the organization. Employees who perceive that they receive unfavourable treatment
from the organization are more likely to feel angry, vengeful and withdraw from the job. In line with
the norms of reciprocity, employees who are dissatisfied are likely to reciprocate by exhibiting a
deviant behaviour, such as, arriving at work late, withholding effort, taking longer breaks than
allowed, and so on. Employees who are not engaged on the job may retaliate against their employer
by behaving in ways that harm the organization.
Besides, the JD-R model has long proposed that work engagement is a potential mediating
variable. Work engagement involves a motivational process in which it mediates the relationships
between job resources and better job performance (Schaufeli & Bakker, 2010). Many scholars and
authors have attempted to comprehend the antecedents and consequences of work engagement is a
potential mediating variable, and can be seen in a number of research (Crawford, LePine & Rich,
2010; Demerouti & Cropanzano, 2010; Halbesleben, 2010; Christian, et al., 2011; Bakker, et al.,
2014), which demonstrated progress in addressing this salient matter.
Guidance has long been provided by the JD-R model regarding the mediating influence of
work engagement. Specifically, Schaufeli and Bakker (2010) indicated that as job resources foster
growth, learning and development, it increases work engagement of employees. In turn, Bakker and
Demerouti (2017) averred that employees will demonstrate better job performance. Empirical
evidence on work engagement as a mediator in this process is also available. For instance, recent
research found that work engagement showed partial mediation on the effects of job characteristics
and perceived organizational support on numerous results, which include job performance (Ng &
Chung, 2010; Kim, 2017; Saks, 2019). Thus, due to its motivational process, job resources have the
potential to increase work engagement of employees. In turn, for the organization, this is associated
with positive consequences (Schaufeli, Maassen, Bakker & Sixma, 2011).
Research has showed the mediating influence of work engagement in the interplay between
job resources and job performance (Hakanen, Bakker & Jokisaari, 2011). The provision of job
resources could enhance employees’ ability to meet their basic needs that could lead to work
engagement. This statement has been supported by some assumptions and theoretical research (see,
Karatepe, 2013; Vincent-Höper, Muser & Janneck, 2012; Sulea et al., 2012; Slatten & Mehmetoglu,
2011; Ng & Tay, 2010) which found that work engagement serves as a full mediator between two
variables. A research regarding the influence of work engagement as a mediating variable is the one
conducted by Karatepe (2013). This study was conducted among the full-time frontline employees
in four- and five-star hotels and focused on the mediating effect of work engagement on the
interplay between organizational politics and job performance, which showed a strong support for
work engagement as a full mediating variable between organizational politics and job performance.
In the context of this research, work engagement is used as a mediator between job resources
and job performance of vocational business educators in public universities in South-South Nigeria.
It is therefore assumed in this research that vocational business educators who are energetic,
enthusiastic, happy and proud in performing their jobs are more likely to continue their job activities
and subsequently stay longer in their different universities. This assumption further explained how
work engagement might mediate the relationships between job resources and the job performance of
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vocational business educators in public universities in South-South Nigeria. Therefore, it is assumed
in this research that job resources may positively influence job performance and this interplay can be
mediated by the experiences of work engagement.
Hypothesis 4: Work engagement will positively mediate the relationship between job
resources and job performance.
Method
Research Design
This research employed a quantitative survey research design to test the four hypotheses
proposed. Quantitative survey research designs are useful in the early stages of research, such as in
this study, in order to empirically testing the strength and direction of relationships among the
research variables (Johnson, 2001). Therefore, quantitative type of designs could serve as the
foundation upon which future experimental and quasi-experimental research is to be built.
Participants and Sampling Procedure
The participants were 142 full-time vocational business educators who worked in a public
university in South-South Nigeria. Scholars and researchers (Chukwuedo & Igbinedion, 2014;
Chukwuemeke & Igbinedion, 2021; Edokpolor & Oviawe, 2022a&b; Edokpolor, Otache & Osifo,
2022; Edokpolor et al., 2022; Edokpolor et al., 2023) recommended that a vocational educatorrecruited participant is an appropriate data collection strategy because a vocational educator are
expected to be involved in high-job situations. The convenience sampling methods were used to
select 142 participants from 12 public universities in South-South Nigeria. A convenience sampling
method can be employed if the participants are available to the authors as at the time the research is
conducted (Creswell & Creswell, 2017; Creswell & Poth, 2018).
Research Measurement Scale
The job resources scale developed by Bakker (2014) was adapted and used to measure the
participants’ experiences of job resources (for example, colleague/HOD support (6 items), job
autonomy (3 items), performance feedback (3 items) and career development opportunities (3
items). However, variety of skills utilization (4 items), a major construct of job resources was
constructed by the authors. The responses to the job resources items were assessed on a 4-point
Likert-type scale ranging from 1 (not at all) to 4 (always).
The work engagement scale developed by Rich, LePine and Crawford (2010), reflecting each
of the work engagement sub-scales such as, cognitive engagement (6 items), emotional engagement
(6 items) and physical engagement (4 items), originally developed by Kahn (1990) was adapted and
used to measure the participants’ experiences of work engagement. The responses to the work
engagement items were assessed on a 4-point Likert-type scale ranging from 1 (not at all) to 4
(always).
The task performance (25 items), a major construct of job performance was constructed by
the authors covering teaching, research and administration. The contextual performance (5 items), a
major construct of job performance was also measured using a scale developed by Goodman and
Svyantek (1999). The responses to the job performance items were assessed on a 4-point Likert-type
scale ranging from 1 (not at all) to 4 (always).
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Validation of Instrument
The data collection measurement scales were subjected to face and content validity by three
experts, two in Business Education and one in Measurement and Evaluation. The face and content
validity of the data collection measurement scales was done with respect to relevance, sentence
structure and adequacy. The suggestions that were pointed out by these three experts were effected
in the final copies of the data collection measurement scales and were reproduced to answer the
research questions and test the research hypotheses at a 0.05 level of significance.
Reliability of Instrument
To establish the reliability, the internal consistency estimates were calculated using
Cronbach’s alpha for the items selected to represent each of the variables (Brown, 2002). The
coefficient alpha representing each of the variables can be found in Table 1.
Table 1: Variables, Items, and Measurement Scale Reliabilities
Variables and Items
Cronbach’s α
Job Resources
My work require me to utilize creativity/innovation skills.
My work require me to utilize flexibility/adaptability skills.
My work require me to utilize ICT literacy/numeracy skills.
My work require me to utilize collaboration/teamwork skills.
I freely ask my colleagues for help on my job.
I count on my colleagues to support me where I encounter difficulties in my job.
I feel valued by my colleagues and we collaborate effectively.
My HOD show consideration for personal problems affecting my work.
My HOD value me and readily supports me.
My HOD use his/her influence to help me solve problems at work.
I have control over how I carry out my work.
I can independently manage available resources for my work.
I am so hampered by guidelines and specifications that I hardly bring original ideas into my
work.
My work offers me opportunities to check on how well I am performing.
Students’ ratings inform me on how good or bad my performance is.
My HOD informs me whether he/she is satisfied with my performance.
My work offers me the opportunities to acquire (learn) new skills.
My work gives me opportunities to continually upgrade/update myself.
My work offers me the possibility for increased income.
α = 0.95
Work Engagement
My mind is often full of ideas about my work.
Wherever I am, things happen that often remind me of my work.
My mind is fully engaged with my work.
I rarely think about time when I am working.
My thoughts are fully focused when thinking about my work.
I give a lot of mental attention to my work.
I feel very delighted about what I am doing whenever I am working.
α = 0.96
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I am very eager to do my work.
I feel very happy when I am carrying out my responsibilities at work.
I feel very good about the work that I do.
I feel strong enthusiasm about my work.
I feel a sense of gratification with my work performance.
I have a great deal of stamina for my work.
I am often physically driven by my work.
I am frequently energized by my work.
I find my work to be physically invigorating.
Job Performance
…use PowerPoint for face-to-face lectures.
…use Skype for distance lectures.
….deliver lectures through YOU-TUBE.
…deliver lectures through WhatsApp.
…adopt video conferencing for lectures.
…use Microsoft office to produce lecture materials.
…adopt doodle for online lectures.
….use the internet to source for information when carrying out research.
…use anti-plagiarism software to check similarities index.
…use Microsoft Excel for coding research data.
…use software package to format referencing styles.
…use statistical package to analyze quantitative data.
…present research papers using PowerPoints slides.
…edit research papers using software packages.
…upload research papers on the internet using online research platforms.
…use software package to analyze qualitative research data.
…upload students’ result online.
…course advice students through the internet.
…use LISTERV to reach many students at once.
…prepare students results using Microsoft office documents.
…use mobile phones to address official matters.
…use videoconferencing to address official matters.
…perform students’ online admission/registration exercise.
…use multimedia resources for official matters.
…compute students’ grade point average.
…voluntarily help colleagues to perform their job activities.
…voluntarily disclose illegal practices to individuals who are authorized to take action.
…voluntarily attend corporate functions such as award banquet.
…voluntarily put in extra effort to complete a given job activity.
…voluntarily settle dispute among colleagues in my workplace.
α = 0.96
Procedure for Data Collection
The authors administered each of the survey instruments on vocational business educators
(both lecturers and HODs) with the help of six research assistants who were briefed on the
procedures to follow. The completion time for each survey instruments was roughly two weeks.
Because this research examined vocational business educators job characteristic and work well-
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being and the influence they may have on better behavioural outcome, the data for independent
variables (job resources and work engagement) were collected first, while the data for dependent
variable (job performance) was collected after one week later. The data for independent variables
was self-reported, where information was collected from the vocational business educators
(lecturers), while the data for dependent variable was alternate-reported, where information was
collected from the HODs to avoid common method bias.
Data Analysis
The SPSS v. 23.0 and PROCESS Macro plugging for SPSS v. 3.4.1 by Hayes (2018) was
use to analyze the data collected from the participants. Bivariate correlation was performed to
answer the research questions. Linear regression was performed to test the hypotheses (the direct
relationships/unmediated pathways). Bias corrected and accelerated (BCa) bootstrap was performed
to test another hypothesis (the indirect relationship/mediated pathway). Decision rule for Bivariate
correlation were based on a range of coefficient value (r) as recommended by Uzoagulu (2011) in
the following order: Coefficient r-value between ± .8 and ± 1.0 implying a very high correlation; ±
.6 and ± .8 implying a high correlation; ± .4 and ± .6 implying a moderate correlation; ± .2 and ± .4
implying a low correlation; ± .0 and ± .2 implying a very low correlation; ± 1.0 implying a perfect
correlation; and coefficient r-value of 0 implying a no correlation. When a coefficient r-value is
negative, it is a negative correlation; implying that as one variable increases the other decreases.
When a coefficient r-value is positive, it is a positive correlation implying that as one variable
increases the other increases. Decision rule for linear regression was based on a probability value
less than or equal to .05 implied significant (accept H0) while a probability value greater than .05
implied not significant (reject H0). Decision rule for BCa was based on any value of a confidence
interval (lower limit and upper limit) that are within the same axis (not including zero) implied
significant (accept H0), while any value of a confidence interval (lower limit and upper limit) that
are not within the same axis (including zero) implied not significant (reject H0).
Result
Table 2: Bootstrapping and Bivariate Correlation between the Study Variables.
5000 Resample Bootstrapping Iterations
95%CI
S/N Pathways
r
p
Bias
SE
LL
UL
**
1.
JR → WE
.560
.000
.002
.085
.382
.716
**
2.
WE → JP
.835
.000
.003
.024
.790
.885
**
3.
JR → JP
.814
.000
-.008
.066
.651
.907
Note. **. Correlation is significant at the 0.01 level (2-tailed), *. Correlation is significant at the 0.05
level (2-tailed), Unless otherwise noted, bootstrap results are based on 5000 bootstrap samples, N =
142, p < 0.05, JR = Job Resources, WE = Work Engagement, JP = Job Performance, CI =
Confidence Interval.
Table 2 showed the correlation between job resources and work engagement of
vocational business educators in public universities. The Table showed that the correlation between
job resources and work engagement of vocational business educators in public universities is
positively moderate (r = .560, p < 0.05). All in all, there exist a positively moderate correlation
between job resources and work engagement of vocational business educators in public universities
in South-South Nigeria. Table 1 also showed the data correlation between work engagement and job
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performance of vocational business educators in public universities. The Table showed that the
correlation between work engagement and job performance vocational business educators in public
universities is positively high (r = .835, p < 0.05). All in all, there exist a positively high correlation
between work engagement and job performance of vocational business educators in public
universities in South-South Nigeria. Table 1 further showed the correlation between job resources
and job performance of vocational business educators in public universities. The Table showed that
the correlation between job resources and job performance of business educators is positively high (r
= .814, p < 0.05). By and large, there exist a positively high correlation between job resources and
job performance of vocational business educators in public universities in South-South Nigeria.
Table 3: Regression Estimates of the Direct Relationship between the Study Variables.
5000 Resample Bootstrap with BCa Estimates
95% CI
Pathways
SE Beta (β)
t
Bias
R2
Adj. R2
p
LL
UL
JR → WE
.094 (.499)
6.805
-.009
.249
.243
.000
.483
.853
WE → JP
.163 (.611)
9.088
.000
.373
.368
.000
.662
1.300
JR → JP
.173 (.565)
8.077
-.017
.319
.315
.000
.897
1.583
Note. N = 142, p < 0.05, JR = Job Resources (F=46.307), WE = Work Engagement (F=82.592), JP
= Job Performance (F=65.243), BCa = Bias-Corrected and Accelerated Estimates, CI = Confidence
Interval.
Table 3 showed the coefficient of relationship between job resources and work engagement of
vocational business educators in public universities. The Table showed the significant coefficients
(F = 46.307, β = .499, t = 6.805, p < 0.05), which is also a confirmation of the results obtained. The
adjusted r-square (.243) showed that 24.3% of the variation in work engagement is influenced by job
resources. All in all, job resources were found to significantly influence work engagement of
vocational business educators in public universities in South-South Nigeria. Table 1 also showed the
coefficient of relationship between work engagement and job performance of vocational business
educators in public universities. The Table showed the significant coefficients (F = 82.592, β = .611,
t = 9.088, p < 0.05), which is also a confirmation of the results obtained. The adjusted r-square
(.368) showed that 36.8% of the variation in job performance is influenced by work engagement. All
in all, work engagement was found to significantly influence job performance of vocational business
educators in public universities in South-South Nigeria. Table 1 further showed the coefficient of
relationship between job resources and job performance of vocational business educators in public
universities. The Table showed the significant coefficients (F = 65.243, β = .565, t = 8.077, p <
0.05), which is also a confirmation of the results obtained. The adjusted r-square (.315) showed that
31.5% of variation in job performance is influenced by job resources. By and large, job resources
were found to significantly influence job performance of vocational business educators in public
universities in South-South Nigeria. Hence, hypothesis 1 is accepted.
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Table 4: BCa Estimates of the Indirect Relationship between the Study Variables.
5000 Resample Bootstrap with BCa Estimates
95% CI
Variable
Effects Pathways
Beta (β)
SE
p
LL
UL
Job Resources Total
JR → JP
1.294
.160
.000
.977
1.610
Direct
JR → JP
.794
.165
.000
.469
1.120
Indirect JR → WE → JP
.500
.128
Sig.
.257
.756
Note. N = 142, p < 0.05, JR = Job Resources, WE = Work Engagement, JP = Job Performance, BCa
= Bias-Corrected and Accelerated Estimates, CI = Confidence Interval.
Table 4 showed the regression on the mediating influence of work engagement on the
relationship between job resources and job performance of vocational business educators in public
universities. The Table showed that the specific indirect effect of job resources via work engagement
is statistically significant. The total effect of job resources on job performance is found to be
statistically significant (β = 1.293, p < 0.05, LLCI = .977, ULCI = 1.610). Similarly, the Table
showed that the direct effect of job resources on job performance (β = .794, p < 0.05, LLCI = .469,
ULCI = 1.120) is statistically significant. Since the specific indirect effect of job resources on job
performance (β = .500, p < .05, LLCI = .257, ULCI = .756) via work engagement is statistically
significant, work engagement is found to fully mediate the relationship. By and large, work
engagement is found to significantly mediate the relationship between job resources and job
performance of vocational business educators in public universities in South-South Nigeria. Hence,
hypothesis 2 is accepted.
Discussion
Job Resources and Work Engagement
The results in Table 2 showed a positively moderate correlation between job resources and
work engagement of vocational business educators in public universities in South-South Nigeria.
The results of the corresponding hypothesis in Table 3 showed that job resources significantly
influenced work engagement of vocational business educators in public universities, as job resources
accounted for 24.3% of the variation in work engagement. Therefore, job resources were found to
significantly influence work engagement of vocational business educators in universities in SouthSouth Nigeria. This finding implied that when vocational business educators experience high job
resources, they will equally experience high work engagement. This finding supported the research
conducted by Demerouti, et al., (2001) who found that job resources influenced work engagement of
employees. The finding also concurred with the view of Scanlan and Still (2019) who argued that
job resources involve an aspects of the job that provided support for employees and help to maintain
work engagement.
Work Engagement and Job Performance
The results in Table 2 also showed a positively high correlation between work engagement
and job performance of vocational business educators in public universities in South-South Nigeria.
The results of the corresponding hypothesis in Table 3 showed that work engagement significantly
influenced job performance of vocational business educators, as work engagement accounted for
36.8% of the variation in job performance. Therefore, work engagement was found to significantly
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influence job performance of vocational business educators in public universities in South-South
Nigeria. This finding implied that when vocational business educators are highly engaged on the job,
they will equally perform better on the job. The finding aligned with the perceptions of Griffin, Neal
and Parker (2007) who claim that employees who experience high work engagement, also
experience a greater degree of job performance. The finding also agreed with the research of Bakker
and Bal (2010) who found that engaged employees (or teachers) execute job performance better,
indicating that engaged employees are willing to go the extra mile on the job. The finding also
agreed with the research of Bakker, Demerouti and ten Brummelhuis (2012) and Demerouti and
Cropanzano (2010) who found that employees who are engaged at work will equally perform better
on the job. The finding also supported the recommendations of previous research by Christian et al.,
(2011), Rich et al., (2010) and Leiter and Bakker (2010) who recommended that the experience of
high degrees of work engagement of employees enhances job performance. The finding also
supported the assertions by Rana, Pant and Chopra (2019) who argued that employees who are
engaged at work are characterized as been vigilant, more engrossed with their job and thus
considering work engagement to be positively related to job performance. The finding also
concurred with the research of Karatepe and Ngeche (2012) who found a significant relationship
between work engagement and job performance of employees.
Job Resources and Job Performance
The findings in Table 2 also showed a positively high correlation between job resources and
job performance of vocational business educators in public universities in South-South Nigeria. The
results of the corresponding hypothesis in Table 3 showed that job resources significantly influenced
job performance of vocational business educators, as job resources accounted for 31.5% of the
variations in job performance. Therefore, job resources were found to significantly influence job
performance of vocational business educators in universities in South-South, Nigeria. This finding
implied that when business educators experience high job resources, they will equally experience
better job performance. This finding supported the study of Min and Yong (2014) who found that
job resources were positive influence of job performance. The finding also aligned with the
perceptions of Nwanzu and Adams (2019) who acknowledged that healthy social relationship
between supervisors (which are HODs within the context of this research) and employees (which are
lecturers within the context of this research) and employees and employees are salient for job
performance as they are indication of conducive and harmonious work environment which pave way
for productive working behaviour. Furthermore, the finding of the study also supported the research
of Jayaweera (2015) and Lankeshwara (2016) who found that job resources such as
colleague/supervisor support have a significant relationship with job performance.
Work Engagement and its Mediating Role between Job Resources and Job Performance
The results in Table 4 showed that work engagement is a potential mediator in the
relationship between job resources and job performance of vocational business educators. All in all,
work engagement was found to significantly mediate in the relationship between job resources and
job performance of vocational business educators in public universities in South-South Nigeria. This
finding implied that a vocational business educator, who experience high job resources, will equally
experience high work engagement which, in turn, will equally influence the zeal to perform better on
the job. The findings supported the research of Schaufeli and Bakker (2004) who found that work
engagement mediated the relationship between job resources and job performance. The findings also
supported the views of Bakker et al., (2014) who perceive job resources as the main drivers of work
engagement as job resources will lead to better job performance. The findings also supported the
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research of Shantz, Alfes, Truss and Soane (2013) who found that work engagement significantly
mediated the relationship between job resources and job performance. The findings also supported
the research of Kim (2017) who found that work engagement significantly mediate the relationship
between job resources and job performance. The finding also supported the research of Dixit and
Upadhyay (2021) who found and suggest that work engagement mediates the relationship between
job resources and work-related behaviour. The findings also supported the research by Chung and
Angeline (2010) who found that work engagement of staff significantly mediate the relationship
between job resources and job performance of employees.
Conclusion
The research examined the relationship between job resources, work engagement and job
performance of vocational business educators. It examined the influence of job resources on job
performance of vocational business educators with work engagement as a mediating variable. Job
resources and work engagement positively correlated with job performance of vocational business
educators. Job resources and work engagement significantly related to job performance of vocational
business educators. Work engagement mediated the relationship between job resources and job
performance of vocational business educators. These imply that the creation of a resourceful
working environment will make vocational business educators to be engage and perform better on
the job. The influence of job resources on job performance of vocational business educators is
caused by their work engagement. However, research need to be conducted in the future to establish
whether job resources is a key managerial strategy to achieve better job performance via work
engagement. Future research can be longitudinal or experimental so as to provide a better
understanding because the measurement scale may have captured the surface of the actual issues.
Longitudinal or experimental research can also cover a wide range of location and attract a robust
number of participants.
Practical Implications
The study focused on the mediating influence of work engagement in the relationship
between job resources and job performance of vocational business educators, which relatively
represent a novel area that have not been empirically explored, especially in the context of
vocationally business-oriented educators in public universities in South-South Nigeria. The research
has indeed contributed to the JD-R theory by providing a framework that examined the mediating
influence of work engagement in the relationship between job resources and job performance of
vocational business educators in public universities. For instance, one of the assumption of the JD-R
theory is the motivational process, which suggested that the working environment that is highly
resourceful (where employees use variety of skills, provide help for and receive help from each
other, execute the job with no control from superiors, receive feedback on the job done and seize
opportunity for career advancement) have motivational potential that may provide opportunities for
employees to be engage and perform better on the job. This implied that job resources were part of
the motivational process that increase work engagement and better job performance of employees,
including vocational business educators. Therefore, future research should deeply focus on these
relationships, by investigating the different dimensions of job resources, work engagement and job
performance of vocational business educators.
The findings of the research have also provided practical implications for university
managers and administrators, as it can provide them with the information of how high work
engagement and better job performance of staff can be fostered via increased job resources.
University managers and administrators can sustain abundance of job resources by ensuring
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AAU Journal of Business Educators ( AAUJBE) Vol. 4 No.1, January/ February 2024
adequate implementation of a resourceful working environment that will influence high work
engagement and better job performance of staff. Therefore, a resourceful working environment
should be carefully implemented in order for vocational business educators to continually
experience high work engagement and better job performance. Devising a strategic means of
implementing a resourceful working environment should be one of the mission and vision of the
university managers and administrators.
Recommendations
Based on the findings of the study, the following recommendations are made:
1. University administrators and managers should endeavour to device strategic means to create
a resourceful working environment as they will provide opportunity for vocational business
educators to experience high work engagement and better job performance.
2. Government should endeavour to invest on the career development or advancement of
vocational business educators as this will provide great opportunity for them to acquire
variety of requisite skills and knowledge required to perform better on the job.
3. Vocational business educators should continually make effort to improve themselves by
attending academic conferences, workshops and seminars as this will make them to be
engaged on the job and optimally enhance their performance on the job.
4. Lecturers and Heads of Department should endeavour to provide support for their colleagues
(co-workers) as this will help to reinforce or motivate them to be engaged on the job and
optimally enhance their performance on the job.
5. University management and Heads of Department should endeavour to regularly provide
feedback of the job performed by vocational business educators as this will make them to
buckle up on their different areas of deficiencies.
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