Factorial Validity and Reliability of Persian Version of Competitive State Anxiety Inventory-2 (CSAI-2) in Intensity, Direction and Frequency Dimensions

The Competitive State Anxiety Inventory (CSAI-2) is the most widely used instrument to measure competitive anxiety in the literature. The aim of this study was to examine the factorial validity and reliability of Persian version of Competitive State Anxiety Inventory-2 regarding intensity, direction, and frequency dimensions. The original form included 27 questions and 3 subscales including somatic anxiety, cognitive anxiety, and self-confidence. 356 questionnaires were completed by 16-34-year-old athletes who took part in different sport fields. Five competing models were used to estimate construct validity of the inventory. Confirmatory factor analysis was conducted to contrast the proposed models. The inventory reliability was calculated using the internal consistency method. To examine temporal reliability, intraclass correlation coefficient was applied using test–retest method. The results showed that the Persian version of the inventory supported the 16-item 3-factor model in intensity, direction, and frequency dimensions; thus, validity and reliability of the inventory were confirmed. In conclusion, Persian version of Competitive State Anxiety Inventory-2 with 16 items is recommended to measure athlete's state competitive anxiety.