THE HUNGARIAN VALIDATION OF THE IRRATIONAL PERFORMANCE BELIEFS INVENTORY (IPBI)
DOI:
https://doi.org/10.17627/ALKPSZICH.2024.1.61Keywords:
sport psychology, REBT, iPBI, validity, reliabilityAbstract
Background and aims: In the field of scientific and practical sport psychology, Rational Emotive Behavior Therapy (REBT) has gained prominence as an assessment and intervention approach. Its foundation lies in identifying and rationalizing irrational beliefs (demandingness, low frustration tolerance, awfulizing, depreciation). To make this intervention applicable in both scientific and applied sport psychology in Hungary, creating a validated measurement tool in Hungarian is essential. Therefore, this study aims to explore the validity, reliability, and standardization of the Hungarian version of the Irrational Performance Beliefs Inventory (IPBI), originally in English.
Method: The research involved 334 Hungarian amateur and professional athletes engaged in individual or team sports. Following internationally accepted principles of translation and cultural adaptation, the 20-item iPBI developed for athletes was translated into Hungarian.Additionally, the Competitive Sport Anxiety Inventory (CSAI) was used to measure competitive anxiety. Confirmatory factor analysis was employed to explore construct validity, while linear regression analysis was used for predictive validity. To assess internal consistency, inter-scale correlation coefficients were examined, and test-retest methodology was employed for assessing repeatability within the class by using interclass correlation coefficients.
Results: The results of the confirmatory factor analysis of the original 20-item version did not show adequate fit indices. After excluding four problematic items, the 16-item version demonstrated satisfactory values in confirmatory factor analysis. Irrational beliefs predict all three components of the multidimensional anxiety model (cognitive, somatic, self-confidence). Internal consistency and test-retest examinations also confirm the reliability of the 16-item version.
Discussion: This study confirms the validity, reliability, and standard values of the 16-item Hungarian Irrational Performance Beliefs Inventory (iPBI-HUN). The iPBI-HUN is suitable for both scientific and practical use in the Hungarian population.
