International Journal of Human Movement and Sports Sciences 10(3): 396-403, 2022 http://www.hrpub.org DOI: 10.13189/saj.2022.100305 Competitive State Anxiety Inventory–2R (CSAI-2R): Adapting and Validating Its Indonesian Version Miftah Fariz Prima Putra * , Tri Setyo Guntoro Department of Sport Sciences, University of Cenderawasih, Jayapura, 99351, Indonesia Received February 28, 2022; Revised March 28, 2022; Accepted May 9, 2022 Cite This Paper in the following Citation Styles (a): [1] Miftah Fariz Prima Putra, Tri Setyo Guntoro , "Competitive State Anxiety Inventory–2R (CSAI-2R): Adapting and Validating Its Indonesian Version," International Journal of Human Movement and Sports Sciences, Vol. 10, No. 3, pp. 396 - 403, 2022. DOI: 10.13189/saj.2022.100305. (b): Miftah Fariz Prima Putra, Tri Setyo Guntoro (2022). Competitive State Anxiety Inventory–2R (CSAI-2R): Adapting and Validating Its Indonesian Version. International Journal of Human Movement and Sports Sciences, 10(3), 396 - 403. DOI: 10.13189/saj.2022.100305. Copyright©2022 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract The Competitive State Anxiety Inventory (CSAI) is claimed to be the most popular measuring instrument used by researchers in revealing competitive anxiety in athletes. However, the research report stated that the instrument had psychometric weaknesses, so the CSAI was revised to CSAI-2R. Currently, there are not many tests on the psychometric properties of the latest version of the CSAI. The aim of this study is to test the CSAI-2R in the Indonesian version. A total of 200 elite Papuan Indonesian athletes (120 males, 80 females) whose mean age was 21.98 years, SD = 5.07 took part in the study. There are three instruments used in the study, namely CSAI-2R, Sport Anxiety Scale-2 (SAS-2), and Spirituality in Sports Test (SIST). The statistical analysis used Confirmatory Factor Analysis (CFA) and the internal consistency testing used Cronbach Alpha. The finding shows that the model fits on several parameters including RMSEA = .045, GFI = .919, CFI = .964, TLI = .955, PNFI = .717, and PGFI = .661. The factor loading value of each item ranges from .44 to .83 with squared multiple correlations ranging from .19 to .69. The reliability values range from .61 to .86. Overall, the convergent validity test shows a correlation coefficient value of .722, while the divergent validity test shows that the correlation coefficient value is not significant (r = -.120). The conclusion of this study is that the Indonesian version of the psychometric property of the CSAI-2R is a valid and reliable competitive anxiety measurement instrument for measuring athlete anxiety. Keywords Adaptation and Validation, Competitive Anxiety, CSAI-2R, Sport Anxiety 1. Introduction In the discipline of sports psychology, anxiety is one of the most widely discussed psychological constructs [1]. This happens because experts believe that the anxiety that occurs in athletes is an important factor that determines whether athletes will come out as winners or losers [2,3]. Therefore, many measuring instruments to determine and understand the level of anxiety in sports have been developed [4] and the CSAI has become one of the most popular measuring instruments in the study of athletes' competitive anxiety [5,6]. However, some researchers revealed that there were doubts regarding the factorial validity of the CSAI [7]. Research that tested the CSAI reported that psychometrically the measuring instrument still has weaknesses [6]. Therefore, Lane et al. [8] question the validity of CSAI-2 as an instrument to reveal competitive state anxiety. The first CSAI was developed by Martens, Burton, Rivkin, and Simon [5] by way of modifying the State-Trait Anxiety Inventory (STAI) developed by Spielberger, Gorsuch, and Lushene [9]. Although CSAI was developed from STAI, there are fundamental differences between the two measuring instruments. CSAI is constructed with a specific target of measuring the aspects of anxiety in the