Rasch Analysis of the Proactive Personality Scale. Issue 5 (October 2022)

• Record Type: Journal Article
• Authors: Teye-Kwadjo, Enoch; de Bruin, Gideon P.
• Is Part Of: Psychological reports. Volume 125:Issue 5(2022)
• Page Start: 2788
• Page End: 2806
• Publication Date: 2022-10
• Subjects: proactive personality -- Rasch analysis -- item response theory -- classical test theory; Psychology -- Periodicals; Psychiatry; Psychology; Psychologie -- Périodiques; Psychology; 150.5
• DOI: 10.1177/00332941211028110
• Languages: English
• ISSNs: 0033-2941

Abstract

The Proactive Personality Scale (PPS) is used widely to measure proactive personality. Previous research has evaluated the psychometric properties of the 6-item PPS (hereafter called PPS-6) using classical test theory. There is a need to provide further validity evidence for the PPS-6 using modern test theory. This study evaluated the psychometric properties of the PPS-6 using Rasch analysis. A total of 429 participants completed the PPS-6. Rasch rating scale model (RSM) was used to analyse the data. RSM showed that the PPS-6 fitted the Rasch model well. RSM demonstrated that the PPS-6 functioned as a unidimensional measure with good internal consistency reliability. Items on the PPS-6 did not show any noticeable differential item functioning across gender. RSM showed that the response rating scale of the PPS-6 is suitable. Results suggest that the PPS-6 is a reliable measure for the assessment of proactive personality.