Evaluating a Modified Exercise Self-Efficacy Scale for College-Aged Women

Lynne Ornes, University of South Carolina - Beaufort
Lynda B. Ransdell, Montana State University - Bozeman
Marjorie A. Pett, University of Utah

© Perceptual and Motor Skills 2006, Ammons Scientific.

DOI: http://www.doi.org/10.2466/PMS.103.7.755-764


This pilot study examined test-retest and internal consistency reliabilities of original and modified formats of the Exercise Self-efficacy Scale in college-age women. 30 completed original and modified versions of the scale. Data from both tests, administered 1 wk. apart, were analyzed using the intraclass correlation coefficient (ICC) to assess test-retest reliability and Cronbach coefficient alpha for internal consistency. Scores for both versions correlated .96. Cronbach coefficients alpha for the original scale were .96 for Time 1 and .98 for Time 2. Cronbach coefficients alpha for the revised scale were .95 for Time 1 and .98 for Time 2. Test-retest reliability and internal consistency remained consistently high for both versions of the scales within this sample. Implications for use of this scale and recommendations for research are given. Reprinted by permission of the publisher.