The job demand-control model of job strain across gender

This study investigated (a) the structural and measurement equivalence of measures of the job demand-control (JDC) model of job strain for men and women (as operationalised by the Sources of Work Stress Inventory), (b) whether a common or separate regression equations should be used for men and women in the JDC model, and (c) the strain and buffer hypotheses associated with the JDC model. These objectives were pursued by means of factor analysis, item response theory analysis, and moderated hierarchical multiple regression analysis. The results show that the use of a common regression equation might give biased results. The results also provided stronger support for the strain hypothesis than for the buffer hypothesis. Opsomming Hierdie studie het ondersoek ingestel na (a) die strukturele en metingsekwivalensie van metings van die werkseisekontrole (WEK) model van werkspanning vir mans en vroue (soos geoperasionaliseer deur die Bronne van Werkstresinventaris), (b) die wenslikheid van ’n gemeenskaplike teenoor afsonderlike regressievergelykings vir mans en vroue, en (c) die spanning en buffer hipoteses wat met die WEK model geassossiëer word. Hierdie doelstellings is ondersoek aan die hand van faktorontleding, item responsteorie-ontleding en gemodereerde hiërargiese meervoudige regressie-ontleding. Die resultate wys dat die gebruik van ’n gemeenskaplike regressievergelyking sydige resultate mag oplewer. Die resultate toon verder sterker ondersteuning vir die spanning hipotese as vir die buffer hipotese.

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Item Response Theory Analysis of the Psychopathic Personality Inventory–Revised

Assessment ◽

10.1177/1073191117715729 ◽

2017 ◽

Vol 26 (6) ◽

pp. 1046-1058

Author(s):

Alexander E. Eichenbaum ◽

David K. Marcus ◽

Brian F. French

Keyword(s):

Item Response Theory ◽

Item Response ◽

Personality Inventory ◽

Self Report ◽

Psychopathic Personality ◽

Response Theory ◽

Theory Analysis ◽

Men And Women ◽

Item Response Theory Analysis ◽

Psychopathic Personality Inventory

This study examined item and scale functioning in the Psychopathic Personality Inventory–Revised (PPI-R) using an item response theory analysis. PPI-R protocols from 1,052 college student participants (348 male, 704 female) were analyzed. Analyses were conducted on the 131 self-report items comprising the PPI-R’s eight content scales, using a graded response model. Scales collected a majority of their information about respondents possessing higher than average levels of the traits being measured. Each scale contained at least some items that evidenced limited ability to differentiate between respondents with differing levels of the trait being measured. Moreover, 80 items (61.1%) yielded significantly different responses between men and women presumably possessing similar levels of the trait being measured. Item performance was also influenced by the scoring format (directly scored vs. reverse-scored) of the items. Overall, the results suggest that the PPI-R, despite identifying psychopathic personality traits in individuals possessing high levels of those traits, may not identify these traits equally well for men and women, and scores are likely influenced by the scoring format of the individual item and scale.

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