Anxiety Disorders
15 (2001) 171 ± 182
The effects of impression management demands
on heart rate, self-reported social anxiety, and
social competence in undergraduate males
Christine E. Sheffera, David L. Pennb, Jeffrey E. Cassisia,*
a
Department of Psychology, Jackson State University, P.O. Box 17550, Jackson, MS 39217-0350, USA
b
University of North Carolina, Chapel Hill, NC, USA
Abstract
The effects of self-presentation demands were evaluated through conversational probe
(CP) role-play tasks. Participants (N = 29) were required to manage their self-presentations
(i.e., the impression they made, in each of two conditions). During high impression
management (IM) demand, participants were evaluated on their performance. During Low
IM demand, participants evaluated a confederate's performance. The High IM demand
condition produced significantly higher heart rate (HR) and self-reported anxiety. HR and
self-reported anxiety accounted for a significant amount of the variance in criterion
measures of social competence. Greater social competence during High IM was associated
with higher HR. Greater social competence during Low IM was associated with lower HR
and lower self-reported anxiety. Although preliminary, these results suggest that
uncontrolled IM demands contributed to mixed results found within and between social
anxiety studies in the literature. Implications for the treatment of social anxiety are
discussed. D 2001 Elsevier Science Inc. All rights reserved.
Keywords: Behavioral assessment; Psychophysiological assessment; Role playing; Social anxiety;
Social skills
1. Introduction
Few studies have simultaneously assessed relationships among self-reported
social anxiety, physiological arousal, and social competence in different social
* Corresponding author.
0887-6185/01/$ ± see front matter D 2001 Elsevier Science Inc. All rights reserved.
PII: S 0 8 8 7 - 6 1 8 5 ( 0 1 ) 0 0 0 5 7 - 3
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C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
situations. Using a variety of measures and a variety of social interaction tasks,
have been assessed relationships among subsets of these variables with inconsistent results (Beidel, Turner, & Dancu, 1985; Cook, Melamed, Cuthbert,
McNeil, & Lang, 1988; Dogde, Hope, Heimberg, & Becker, 1988; Glass &
Arnkoff, 1989, 1994; Lang, Cuthbert, & Bradley, 1998; Turner & Beidel, 1985).
Consequently, the roles of self-reported social anxiety, physiology, and social
competence remains unclear.
Recently, Strahan and Conger (1998) found high levels of self-reported social
anxiety to have no detrimental effects on participants' performances. High levels
of social anxiety are often assumed to be correlated with high levels of
physiological arousal. These results conflict with the prevailing performance
deficit model (Gibbons, 1991; Hope, Gransler, & Heimberg, 1989; Ingram,
1990). However, social situations often have different self-presentation demands
(Leary & Kowalski, 1995). No studies have as yet assessed these variables while
controlling for the effects of self-presentation or impression management (IM)
demands. IM demands may be key to understanding the inconsistent results
found both within and between social anxiety studies.
The relationship between social anxiety and social competence is in need of
conceptual and empirical work (McNeil, Reis, & Turk, 1995). The performance
deficit model predicts that high anxiety impairs performance. Many assume that
socially anxious persons are socially inept (Hope et al., 1989; Strahan & Conger,
1998). Social competence in socially anxious persons is thought to suffer due to
the demands of increased self-focused attention, increased physiological arousal,
and/or aroused affect (Gibbons, 1991; Hope et al., 1989; Ingram, 1990; Strahan
& Conger, 1998). Physiological arousal and situational context play a role in the
relationship between social anxiety and social competence, but this role is not
fully understood.
Empirical findings relative to the relationship between social anxiety and
social competence are mixed both within and between studies. Modest support
has been found for the assertion that people with social anxiety show impaired
social competence (Beidel et al., 1985; Clark & Arkowitz, 1975; Rapee & Lim,
1992; Stopa & Clark, 1993; Strahan & Conger, 1998). This relationship varies by
social task (e.g. impromptu speech task, heterosexual social interaction, etc.)
(Beidel et al., 1985). Self-focused attention appears to be detrimental only if
participants already lacked confidence in their social abilities (Burgio, Merluzzi,
& Pryor, 1986). Although participants in Strahan and Conger's (1998) study
displayed degrees of social anxiety equivalent to that found in social phobics,
they showed no deficits in social competence.
The evidence in support for social competence deficits in socially anxious
persons is primarily based on males engaged in heterosexual social interactions.
Nevertheless, these studies have all assessed social competence behaviors
differently. Some used global ratings (e.g., a single rating to describe overall
performance) (Beidel et al., 1985). Some used different sets of molecular
behaviors (e.g., head-nodding, standing erect, gaze-aversion, eye contact, etc.)
C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
173
(Glass & Arnkoff, 1989; McNeil et al., 1995; Walters & Hope, 1998). More
recently, Strahan and Conger (1998) used middle level dimensions of content,
verbal fluency, and nonverbal competence as well as a global rating. Paradoxically, differences have been found between anxious and nonanxious groups in
molecular behaviors while at the same time finding no difference in the global
quality of the social interactions (Beidel et al., 1985). Needless to say, it is
difficult to draw conclusions from studies using different variables and obtaining
conflicting evidence.
Most studies of social competence and social anxiety fail to incorporate
specific linguistic and affective measures. Many have called for further inquiry
into multi-modal measures of verbal and nonverbal conversational behaviors
in order to reasonably compare social competence in social anxiety studies
(Beidel et al., 1985; Glass & Arnkoff, 1989; Strahan & Conger, 1998; Walters
& Hope, 1998).
Level of self-reported anxiety is often expected to correlate with physiological
arousal. Socially anxious persons often display more physiological reactivity and
more self-reported anxiety and fear in social situations than nonsocially anxious
persons (Beidel et al., 1985; Borkovec, Stone, O'Brien, & Kaloupek, 1974;
Turner, Beidel, & Larkin, 1986; Turner, Beidel, & Townsley, 1992). However,
self-reported anxiety and fear measures do not correlate with physiological
measures in many clinical and incarcerated populations (Lang et al., 1998).
Unfortunately, few studies investigating relationships between social anxiety and
physiological response have assessed a normative control sample.
Although often uncorrelated with self-report measures, physiological response
reliably differentiate socially anxious patients from patients with other anxiety
disorders, and from normal controls (Beidel et al., 1985; Borkovec et al., 1974;
Lang et al., 1998; Rapee, Brown, Anthony, & Barlow, 1992; Turner et al., 1986;
Turner, Beidel, & Townsley, 1992). Heart rate (HR), however, does not play a
uniform role in social anxiety (Lang et al., 1998; Lang, Levin, Miller, & Kozak,
1983; Turner & Beidel, 1985). HR response is more reactive in socially anxious
males during a heterosexual social interaction role-play than during a same-sex
role-play or an impromptu speech task (Beidel et al., 1985). HR varies widely
from person to person, but higher HR during exposure treatment, consistently
undetected by self-report measures, remains highly predictive of successful
treatment outcomes (Lang et al., 1998; Turner, Beidel, Long, & Greenjouse,
1992). Despite its variability, HR response is one of the most reliable physiological measures in the assessment and treatment of anxiety.
There are inconsistent results linking social anxiety with social competence as
well as social anxiety with physiological arousal. There are also no published
data describing relationships among social anxiety, social competence, and
physiological arousal in nonclinical populations. Nevertheless, distinguishing
normal control responses from anxious patient responses implies knowledge of
normative physiological and self-reported anxiety responses to social situations.
Additionally, distinguishing between related anxiety disorders on the basis of
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C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
social competence and self-reported anxiety also implies knowledge of normative
social competence behaviors. Although studies have made these distinctions, no
such normative data exist.
Behavioral assessment is highly related to context. Beidel et al. (1985) found
situational factors to mediate physiological reactivity. However, the situational
factor in the Beidel et al. (1985) study, although rationally driven, was not
theoretically derived. Consequently, Beidel et al. (1985) proposed no theoretical
relationships associating situational factors to physiological arousal, social
competence behavior, and/or self-reported anxiety (Turner et al., 1986; Turner,
Beidel, & Townsley, 1992). Whether the uncoupling of self-reported anxiety,
social competence, physiology, and social situations across and within studies is
ubiquitous, or a function of pathology, habituation, or uncontrolled variability in
social situations remains unknown.
2. Self-presentation theory
Self-presentation theory of social anxiety emerged from the study of nonclinical anxiety in social situations. The theory associates social anxiety with
perceived situational factors. Incorporating aspects of the cognitive ±behavioral
model, self-presentation theory parsimoniously accounts for the full range of
social anxiety experienced by clinical and nonclinical populations (Leary &
Kowalski, 1995). Severity of social anxiety is accounted for by a quantitative
increase in symptoms. No evidence of a qualitative difference between clinical
and nonclinical populations exists at this time (Beidel et al., 1985; Glass &
Arnkoff, 1994; Leary & Kowalski, 1995; Turner et al., 1986; Turner, Beidel, &
Townsley, 1992). Thus, normative control responses to social anxiety can be
cautiously, but reasonably, applied to clinical populations.
According to self-presentation theory, all people experience social anxiety in
social situations when two conditions are present: The individual (a) possesses
motivation to make a particular impression (good or bad), and (b) doubts that
the desired impression successfully will be made (low self-efficacy) (Leary &
Kowalski, 1995). Consequently, social situations where persons desire to make
a particular impression have greater self-presentation or IM demands than social
situations where persons are not so motivated. Salient evaluation of social
performance and a perceived audience are known to increase IM demands
(Leary & Kowalski, 1995). Self-presentation theory provides a theoretical
foundation for inducing increased social anxiety as a manipulation by invoking
a demand for IM.
This study utilized a nonclinical population of male undergraduates in two
social situations: (a) High impression management (High IM), and (b) Low
impression management (Low IM). During High IM demand, participants were
evaluated on their performance. During Low IM demand, participants evaluated a
confederate's performance. The High IM condition was anticipated to induce
C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
175
higher state anxiety and higher HR than the Low IM condition. Molecular,
middle level, and global multi-modal measures of linguistic and affective
behaviors utilized elsewhere (Penn et al., 1999; discussed in Penn, Corrigan, &
Racenstein, 1998) and similar to those used by Strahan and Conger (1998) were
obtained for each participant during each condition. Congruent with the performance deficit model and some previous research, participants with the least selfreported anxiety, the least fear of social situations, and lowest HR in both
conditions were expected to demonstrate the highest social competence.
3. Method
3.1. Participants
Participants were 29 undergraduate males recruited from psychology classes at
a Chicago metropolitan area university. Participants received extra credit in
exchange for participation. Participants were 53% white, mean age 21 years, with
a mean of 14 years of education.
3.2. Measures
3.2.1. Heart rate
HR measures were collected continuously throughout the experimental conditions. HR was sampled at 2 Hz relayed through a Coulbourn 8-bit analog-todigital convertor (L25-08) to Labtech Notebook software on a personal computer.
HR was measured with a photoplethysmographic sensor placed on the center of
the distal phalanx of the left index finger. The HR signal was processed through a
Coulbourn Pulse optical Densitometer (S71-40) and a Coulbourn Tachometer
(S77-26). HR was calculated by subtracting baseline beats per minute from postrole-play beats per minute for each participant in each condition.
3.2.2. Subjective Units of Distress (SUDS)
A SUDS (1 ± 100) was used as an indirect measure of state anxiety.
Participants were trained in the use of the anchored scale and made aware of
a SUDS poster affixed to the wall next to the participant's chair for reference.
In addition to baselines, SUDS data were collected before and after each
condition. Participants were instructed to base post-role-play SUDS ratings on
the highest level of anxiety experienced during the role-play. SUDS ratings
were calculated by summing baseline SUDS and post-role-play SUDS for each
participant in each condition.
3.2.3. Fear Questionnaire Ð Social Phobia (FQ-Social)
The Fear Questionnaire includes a Social Phobia subscale (FQ-Social) which
is commonly used in social anxiety research (Marks & Mathews, 1979; McNeil et
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al., 1995). The FQ-Social includes five anxiety-producing situations that are rated
on a Likert type scale (0 ± 8) for degree of avoidance. The FQ-Social has
demonstrated moderate to high internal consistency and appropriate discriminate
validity (Oei, Moylan, & Evans, 1991).
3.2.4. Impression Scale (IS)
The IS is a five-point Likert type scale with the following four items: (a)
Social Skills, Poor to Good; (b) Content of Conversation, Uninteresting to
Interesting; (c) Friendliness, Unfriendly to Very Friendly; and (d) Attractiveness,
Unattractive to Very Attractive. The IS was created to underscore the need to
evaluate the confederate in the Low IM condition and increase the IM demand in
the High IM condition.
3.2.5. Social skills assessment
The following molecular social skills were rated on anchored five-point Likert
type scales ranging from 1 (Poor) to 5 (Good): (a) Overall social skill; (b) Clarity,
the clear enunciation of speech; (c) Fluency, smoothness of speech, absence of
verbal interruptions such as ``uh,'' stutters, etc.; (d) Affect, the appropriate
communication of feeling through facial expression, use of gestures, voice tone,
etc.; (e) Gaze, eye contact; and (f) Involvement, the extent to which the individual
appears involved in conversation with the confederate. Asks questions was rated
on a Likert scale with a range from 1 (None) to 5 (Many).
Social competence was assessed by two research assistants unfamiliar with the
study, the participants, and the experimental conditions. Raters were trained on 20
conversational probes (CP's) drawn from a library of role-plays from previous
research (Penn, Hope, Spaudling, & Kucera, 1994). When an ICC coefficient of
greater than .70 was achieved, the CPs from the present study were rated.
Assistants rated the first CP for all participants first, followed by the second
CP for that participant. They were unable to refer to previous ratings. ICCs were
averaged across the two conditions and were above .90 for all molecular social
skills ratings.
Consistent with previous research (Penn, Meuser, Spaulding, Hope, & Reed,
1995), molecular social skill ratings were combined into three middle level
composite indices of social competence by summing standardized z scores for
each skill: (a) Verbal Social Skill (VSS) = the sum of Overall Social Skill and
Asks Questions; (b) Nonverbal Social Skill (NSS) = the sum of Affect, Involvement, and Gaze; and (c) Paralinguistic Social Skills (PSS), the sum of Fluency
and Clarity. Also consistent with previous research, the three indices appear to
share a moderate degree of variance (see Table 1) (Penn et al., 1999).
VSS, NSS, and PSS indices were also summed to obtain global competence
ratings in order to compare global competence ratings from other studies, to
control for the overlapping variance apparent in the middle level indices, and to
assess the degree of aggregate variance accounted for by the predictor measures
(see Table 3).
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Table 1
Low IM condition Pearson r correlation matrix
HR
HR
SUDS
FQ-Social
VSS
NSS
PSS
1.00
SUDS
.26
1.00
FQ-Social
.30
.42*
1.00
VSS
.54*
.20
.16
1.00
NSS
,#
.30
.15
.32
.61* ,#
1.00
PSS
.32
.22
.33
.61* ,#
.49*
1.00
HR = heart rate; SUDS = Subjective units of distress scale; FQ-Social = Social Phobia subscale on
the Fear Questionnaire; VSS = Verbal Social Skills; NSS = Nonverbal Social Skills; PSS = Paralinguistic Social Skills.
* Denotes significance ( P < .05, two-tailed).
#
Denotes significance after a Bonferroni correction ( P < .003, two-tailed).
3.3. Procedure
After informed consent was obtained, participants were seated in a reclining
chair, electrodes were attached, and video taping was initiated. An 8-min
habituation period followed. Participants were trained in the use of the SUDS
(1 ±100). Baseline SUDS and HR data were collected.
Participants then took part in two sequential videotaped CP role-plays
corresponding to the High and Low IM conditions, each with a different
confederate. CP requires the participant to initiate and maintain a conversation
with a stranger for 3 min (Mueser et al., 1996; Penn et al., 1995). The confederates,
undergraduate females, were trained to employ standardized prompts during the
conversation (e.g. ``Tell me about your family?'') if a period of 5 s elapsed after the
confederate had spoken and the participant had not responded.
In the Low IM condition, participants were told that the confederate was the
focus of the evaluation, that she was instructed to make the best possible
impression, and that they were to evaluate her using the IS. In the High IM
condition, participants were told that they were the focus of the evaluation, to
make the best impression possible on the confederate, and that the confederate as
well as a research assistant would evaluate them using the IS. IS was shown and
read to the participants who received the High IM condition prior to the Low IM
condition. Each condition was followed by a 3-min recovery period. Confederate
participation and order of conditions were counterbalanced across participants.
Upon completion of the last recovery period, the participants were administered the FQ-Social and videotaping ceased.
4. Results
Two paired samples t tests were conducted to ascertain whether the High IM
condition indeed succeeded in inducing greater social anxiety than the Low IM
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C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
Table 2
High IM condition Pearson r correlation matrix
HR
HR
SUDS
FQ-Social
VSS
NSS
PSS
1.00
SUDS
.22
1.00
FQ-Social
.36
.41*
1.00
VSS
.38*
.17
.31
1.00
NSS
PSS
,#
.53*
.13
.39*
.85* ,#
1.00
.26
.24
.13
.37
.42*
1.00
HR = heart rate; SUDS = Subjective units of distress scale; FQ-Social = Social Phobia subscale on
the Fear Questionnaire; VSS = Verbal Social Skills; NSS = Nonverbal Social Skills; PSS = Paralinguistic Social Skills.
* Denotes significance ( P < .05, two-tailed).
#
Denotes significance after a Bonferroni correction ( P < .003, two-tailed).
condition. With an a level of .05, SUDS and HR were indeed significantly
higher in the High IM condition, SUDS, t(28) = 2.29, P=.03, and HR,
t(28) = 2.60, P=.02. The mean summed SUDS for the High IM condition was
83.20 while the mean summed SUDS for the Low IM condition was 71.72.
Mean HR (beats per minute) increase during the High IM condition was 5.02
while the mean HR increase during the Low IM condition was 1.72. The High
IM condition produced significantly more anxiety and physiological arousal
than the Low IM condition.
To assess relationships among the independent and dependent measures, a
correlation matrix was calculated for each IM condition utilizing the Bonferroni
correction procedure. An a of .003 was required for significance (see Tables 1
and 2). A series of backward stepwise multiple regression analyses was then
performed to determine the extent to which predictors (HR, SUDS, FQ-Social)
accounted for variance in the criterion measures of social competence (Global,
VSS, NSS, PSS; criterion probability of F to remove R .10). Models to predict
social competence were tested.
In the Low IM condition, higher social competence was predicted by lower
HR and less self-reported anxiety. HR and the FQ-Social were retained in a
model predicting 39% of the variance in global social competence. HR and
SUDS ratings were retained in a model accounting for 37% of the variance in
VSS. HR and FQ-Social were retained in a model accounting for 22% of the
variance in NSS. HR and FQ-Social were again retained in a model accounting
for 25% of the variance in PSS (see Table 3). In the Low IM condition, greater
social competence was consistently associated with lower HR and lower selfreported anxiety.
In contrast, during the High IM condition, greater social competence was
predicted by higher HR. HR was the only predictor retained in a model predicting
20% of the variance in global social competence. HR accounted for 11% of the
variance in VSS and 26% of the variance in NSS. In this condition, greater social
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C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
Table 3
Multiple regression analyses predicting indices of social competence
Social competence index
Low IM
Global
VSS
NSS
PSS
High IM
Global
VSS
NSS
PSS
Variable
S.E. B
B
P value
b
Adjusted R2
HR
FQ-Social
HR
SUDS
HR
FQ-Social
HR
FQ-Social
0.38
0.33
0.18
1.9
0.13
0.14
6.83
7.50
0.10
0.10
0.05
0.01
0.05
0.06
0.03
0.03
.61
.49
.64
.37
.43
.45
.46
.47
< .01
< .01
< .01
.02
.02
.02
.01
.01
.25
HR
HR
HR
HR
0.41
0.14
0.21
5.72
0.14
0.07
0.06
0.04
.48
.38
.53
.26
.01
.04
< .01
.18 ns
.20
.11
.26
.03
.39
.37
.22
HR = heart rate; SUDS = Subjective units of distress scale; FQ-Social = Social Phobia subscale on
the Fear Questionnaire; VSS = Verbal Social Skills; NSS = Nonverbal Social Skills; PSS = Paralinguistic Social Skills.
competence was associated with higher HR regardless of self-reported anxiety
(see Table 3).
5. Discussion
Results from the Low IM condition supported the proposed hypothesis and
the performance deficit model. In the Low IM condition, social competence
decreased as self-reported anxiety and physiological arousal increased. There
was a substantial overlap in the variability accounted for by the FQ-Social and
the SUDS. Increased self-reported anxiety and increased physiological reactivity appear to contribute to decrements in verbal, nonverbal, paralinguistic,
and global social competence in situations in which the interpersonal IM
demands are low. Beidel et al. (1985) also found a trend toward decrements in
overall social skill ratings associated with increased self-reported anxiety and
arousal during heterosexual social interaction tasks and impromptu speech
tasks. These results suggest that greater social competence during a Low IM
demand social situation requires lower physiological arousal and as well as
lower perceived anxiety.
In contrast, results from the High IM condition did not support the performance deficit model and the proposed hypothesis. In fact, findings were in the
entirely opposite direction. During High IM demand, greater social competence
was associated with greater physiological arousal, and were unrelated self-
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reported anxiety. Consistent with Strahan and Conger's (1998) findings, social
competence behavior was not associated with self-reported anxiety. The higher
physiological reactivity during the High IM condition is consistent with Beidel et
al. (1985) findings of higher arousal during heterosexual social interaction roleplays, a relatively High IM social situation. These results suggest that higher
arousal during a High IM demand situation contributes to social competency.
Examination of the relationships among anxiety, physiology, and social
competence revealed that demand for IM inherent in the social situation is an
important mediating factor in relationships among such variables. This study of
normative participant responses suggests that normative social competence
behavior is associated with different physiological responses in social situations
with different IM demands. Individuals in social situations where the task
demands High IM require higher physiological arousal in order to demonstrate
social competency regardless of the level of self-reported anxiety or fear of social
situations. In contrast, individuals in situations where the social task demands
Low IM require lower physiological arousal and less perceived anxiety to
demonstrate social competency. Interestingly, what appears to be an inconsistent
relationships among anxiety, physiology, and social competence within and
between studies in the literature may be, in part, a function of uncontrolled IM
task demands in the social situations in which behavioral assessments occurred.
Although preliminary, these results have important implications for the
treatment of social anxiety, as they offer an estimate of the normative response
in different social situations. During treatment of social anxiety, it is common to
role-play problematic social situations (Butler & Wells, 1995; Heimberg & Juster,
1995). According to these results, varying IM demands in social situations
requires attention to different sets of appropriate physiological and anxiety
responses in order to provide for optimal social competence behaviors. For
instance, during a social task in which IM demands are quite high, such as asking
for a date or public speaking, focusing only on decreasing physiological reactivity
and anxiety may not facilitate optimal socially competent behaviors because a
certain level of arousal is associated with competence with this type of social task.
However, during a social task in which IM demands are low, such as having an
informal conversation with a neighbor, attending to a decrease in physiological
reactivity and anxiety may facilitate optimal socially competent behaviors.
Our results are limited by several factors. A larger N may have provided
additional power to account for a greater amount of variance in the High IM
condition as well as provided for the addition of more predictor variables. There
are probably other measurable factors accounting for the difference in variances
found in the High and Low IM conditions that were not available in this study. A
concurrent assessment of cognitive factors would have added to our understanding of the results. A replication, of course, is needed. Additionally,
demographic features of the sample were fairly circumscribed. There is a need
to examine both males and females in clinical and community samples in order to
learn more about these processes and possible treatment implications as well.
C.E. Sheffer et al. / Anxiety Disorders 15 (2001) 171±182
181
Future inquiry is also needed to elucidate the parameters of an ``optimal''
physiological response to different social situations, if it exists. Further explication as to why self-reported anxiety appears unrelated to social competence
behaviors in High IM conditions is needed as well. Further development and
standardization of induced IM demand would assist in the comparison of results
in future studies. And, of course, further development and standardization of
molecular, middle-level, and global social competence measures are needed so
that researchers and clinicians can properly compare social competence behaviors
across studies.
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