Educational and Psychological Measurement, Feb 1, 1996
The purpose of this article is to examine the extent to which environmental context influences th... more The purpose of this article is to examine the extent to which environmental context influences the functional performance (caregiver assistance) ratings of children with severe disabilities. Specifically, we investigated differences in the ratings of functional performance when children were rated by their parents at home and by school rehabilitation personnel when reporting on the same children functioning in an educational setting. We examined the context effect (home versus school setting) as a facet in the multifacet Rasch model. The results indicated that the parents and rehabilitation personnel can both be trained to the level of making similar observational judgments, although the parents tended to be stricter in their ratings.
While youth bullying is a critical public health problem, standardized exposure screening is not ... more While youth bullying is a critical public health problem, standardized exposure screening is not routinely practiced. The Child-Adolescent Bullying Scale, (CABS), a psychometrically robust 22-item tool, was designed and evaluated for this purpose using classical test theory. The goals of the present study were to examine and optimize the measurement properties of the CABS using a Rasch psychometric analysis to develop a brief screening tool appropriate for clinical use. A methodologic design and the Rasch rating scale model were employed. Three hundred and fifty-two youths from two clinical sites participated. Rasch-based analyses included evaluation of response category functioning, measurement precision, dimensionality, targeting, differential item functioning and guidance in item reduction. After iterative revisions, the resulting screening instrument consists of 9 items. Cut-scores and interpretive guidance are provided to aid clinical identification of bullying-related risk. Fi...
Practical Assessment, Research and Evaluation, 2005
Tenure, promotion, and salary decisions are influenced by student ratings of instructors (SRIs) (... more Tenure, promotion, and salary decisions are influenced by student ratings of instructors (SRIs) (McKeachie, 1979; Theall & Franklin, 1990; Yao, Weissinger & Grady, 2003). The literature addressing their validity, as a consequence, is voluminous (Marsh, 1987; Seldin, 1997; Silverman, 2001). From one institution of higher education to the next, however, the evaluation instruments take on different formats and address different aspects of teaching and teacher quality. And, from one institution to the next, the degree to which administrators incorporate this information into an overall judgment about teaching quality is often vague at best (Millman & Darling-Hammond, 1990; Scriven, 1995; Theall, Franklin & Ludlow, 1990; Wachtel, 1998).
Educational and Psychological Measurement, Feb 1, 1996
The purpose of this article is to examine the extent to which environmental context influences th... more The purpose of this article is to examine the extent to which environmental context influences the functional performance (caregiver assistance) ratings of children with severe disabilities. Specifically, we investigated differences in the ratings of functional performance when children were rated by their parents at home and by school rehabilitation personnel when reporting on the same children functioning in an educational setting. We examined the context effect (home versus school setting) as a facet in the multifacet Rasch model. The results indicated that the parents and rehabilitation personnel can both be trained to the level of making similar observational judgments, although the parents tended to be stricter in their ratings.
While youth bullying is a critical public health problem, standardized exposure screening is not ... more While youth bullying is a critical public health problem, standardized exposure screening is not routinely practiced. The Child-Adolescent Bullying Scale, (CABS), a psychometrically robust 22-item tool, was designed and evaluated for this purpose using classical test theory. The goals of the present study were to examine and optimize the measurement properties of the CABS using a Rasch psychometric analysis to develop a brief screening tool appropriate for clinical use. A methodologic design and the Rasch rating scale model were employed. Three hundred and fifty-two youths from two clinical sites participated. Rasch-based analyses included evaluation of response category functioning, measurement precision, dimensionality, targeting, differential item functioning and guidance in item reduction. After iterative revisions, the resulting screening instrument consists of 9 items. Cut-scores and interpretive guidance are provided to aid clinical identification of bullying-related risk. Fi...
Practical Assessment, Research and Evaluation, 2005
Tenure, promotion, and salary decisions are influenced by student ratings of instructors (SRIs) (... more Tenure, promotion, and salary decisions are influenced by student ratings of instructors (SRIs) (McKeachie, 1979; Theall & Franklin, 1990; Yao, Weissinger & Grady, 2003). The literature addressing their validity, as a consequence, is voluminous (Marsh, 1987; Seldin, 1997; Silverman, 2001). From one institution of higher education to the next, however, the evaluation instruments take on different formats and address different aspects of teaching and teacher quality. And, from one institution to the next, the degree to which administrators incorporate this information into an overall judgment about teaching quality is often vague at best (Millman & Darling-Hammond, 1990; Scriven, 1995; Theall, Franklin & Ludlow, 1990; Wachtel, 1998).
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Papers by Larry Ludlow