A Dutch Translation of a Questionnaire Assessing Self-Efficacy in Leisure-Time Physical Activity

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Martin Stevens
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Anita Bakker-van Dijk
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Mathieu H.G. de Greef
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Koen A.P.M. Lemmink
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Piet Rispens
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The purpose of this study was to assess the reliability and validity of a Dutch translation of a questionnaire to measure self-efficacy in leisure-time physical activity. The questionnaire consisted of three subscales measuring three dimensions of self-efficacy. It was completed by 461 participants, 55–65 years old. Fifty-nine participants took part in a test-retest study. Factor analysis and correlations between the sum-scores of the 3 scales confirmed that each scale measures a different dimension of self-efficacy. The criterion-related validity of 2 of the scales was found to be moderate. All 3 scales had a satisfactory internal consistency, indicating that they are reliable. Stability was assessed with a test-retest procedure, which yielded satisfactory results for 2 of the 3 scales. The results revealed an improvement in self-efficacy for 2 of the scales over a 4-week time period. When outliers were excluded, satisfactory values were obtained for intraclass correlation coefficients between the first and second measurements.

The authors are with the Department of Human Movement Sciences at the University of Groningen, 9700 AD Groningen, the Netherlands.

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