Abstract
The objective of this study was to translate, adapt and validate the Sport Confidence Inventory (SCI) to Brazilian Portuguese. The final application of the SCI-BR occurred with 540 adolescent athletes involved in a high-level sports competition. In addition, Factorial Exploratory Analysis (FEA) (n=260) and Confirmatory Factorial Analysis (CFA) (n=280) were conducted in approximately 50% of the total sample for each analysis group. High internal consistency (α =0.861), reproducibility (0.899) and content validity (CVC) for "language clarity" (0.796) and "practical relevance" (0.967) indexes were observed. In addition, two factors have been identified that explain the sport confidence construct in Brazilian adolescent athletes. In the CFA, it was observed adequate global indexes of fit to the model for the instrument from two factors (RMSEA=0.078; CFI=0,90; TLI=0.86; SRMR=0.062). With this, it is concluded that the translated SCI has adequate psychometric indicators for the evaluation of sport confidence in Brazilian adolescent athletes.
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