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Ibero-American Journal of Exercise and Sports Psychology

PSYCHOMETRIC PROPERTIES OF THE BRAZILIAN VERSION OF THE SPORT IMAGERY ABILITY QUESTIONNAIRE

resumen

Alberto Filgueiras, Rodrigo Pieri, Andr├?┬ęa Pesca, Juliana Camilo, Gislane Melo, Bruno de Oliveira Galv├?┬úo, Erick Francisco Quintas Conde, J. Landeira-Fernandez

The ability to conduct imagery is linked to a set of psychological factors in sport practices. This paper investigated the psychometric properties of the Brazilian-adapted version of the Sport Imagery Ability Questionnaire. Amateur athletes from four sports: football, basketball, volleyball and karate, participated (N=383). Data from the back-translated version of the instrument was collected with another Imagery measurement. After a randomized division of the sample, exploratory and confirmatory-factor analyses were performed. Results suggest a 5-factor structure confirmed by fit indexes: CFI=0.97; TLI=0.96; RMSEA=0.05. Reliability was examined by Cronbach’s alpha and composite reliability that showed values above .70. Testretest was also used (r=0.89). Convergent validity was moderate (r=0.51). Criterion validity was tested through two MANOVA where the dependent variable was the average of each one of the 5 factors. The first MANOVA considered sex as independent variable and yielded non-significant results (p=0.45) with a small effect-size (η2=0.04). The second MANOVA was conducted for types of sport as independent variables with significant results (p<0.05) and moderate effect-size (η2=0.27). Results pointed out to validity and reliability comparable to the original version that entails that the Brazilian-adapted questionnaire kept its statistical characteristics.

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