Confirmatory factor analysis of the irrational Performance Beliefs Inventory (iPBI) in a sample of amateur and semi-professional athletes. (March 2018)

• Record Type: Journal Article
• Authors: Turner, M.J.; Allen, M.S.
• Is Part Of: Psychology of sport and exercise. Volume 35(2018)
• Page Start: 126
• Page End: 130
• Publication Date: 2018-03
• Subjects: Construct validity -- Criterion validity -- REBT -- Gender differences; Sports -- Psychological aspects -- Periodicals; Exercise -- Psychological aspects -- Periodicals; Psychology -- Periodicals; Sports -- Periodicals; Exercise -- Periodicals; Societies, Medical -- Periodicals; Psychology; Sports; Exercise; Societies, Medical; Sports -- Aspect psychologique -- Périodiques; Exercice -- Aspect psychologique -- Périodiques; 613.71019
• DOI: 10.1016/j.psychsport.2017.11.017
• Languages: English
• ISSNs: 1469-0292

Abstract

Abstract: Objectives: This investigation sought to test the construct validity of the irrational performance beliefs inventory (iPBI) in a sample of amateur and semi-professional athletes. Method: In total, 550 athletes (312 men, 212 women, M age = 38.04 ± 13.80 years) completed the iPBI and demographic questions at a single time point. Results: Confirmatory factor analysis showed lower than acceptable fit indices for the 28-item iPBI (comparative fit index [CFI] = 0.84). After removal of potential problem items, a 20-item version (iPBI-2) was developed (CFI = 0.91). Results showed that amateur athletes scored higher than semi-professional athletes on primary irrational beliefs and low frustration tolerance, whereas semi-professional athletes scored higher than amateur athletes on depreciation. Conclusions: This study provides initial evidence of construct validity for a 20-item version of the iPBI in an athletic sample, and shows medium effect size differences in irrational beliefs between amateur and semi-professional athletes. Highlights: CFA showed lower than acceptable fit indices for 28-item iPBI. A 20-item version (iPBI-2) was developed and tested. The iPBI-2 demonstrated acceptable fit indices. The iPBI-2 demonstrated comparable concurrent validity to the 28-item iPBI. Differences in irrational beliefs between sexes and athlete levels also emerged.