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Evaluating a modified exercise self-efficacy scale for college-age women
Lynne L Ornes1, Lynda B Ransdell, Marjorie A Pett
1School of Nursing, Southern Utah University, USA. ornes@mountainwest.net
Perceptual and Motor Skills
|March 1, 2007
Summary
This pilot study found that both the original and modified Exercise Self-efficacy Scales demonstrate high test-retest reliability and internal consistency in college-age women. These findings support the scale
Area of Science:
- Behavioral Science
- Health Psychology
- Exercise Science
Background:
- Exercise self-efficacy is crucial for physical activity adherence.
- Validated measurement tools are essential for research and clinical practice.
- Assessing the reliability of the Exercise Self-efficacy Scale (ESS) is important for its effective use.
Purpose of the Study:
- To evaluate the test-retest reliability and internal consistency of the original and modified Exercise Self-efficacy Scale.
- To determine if modifications to the ESS impact its psychometric properties.
- To provide evidence for the reliable use of the ESS in college-age women.
Main Methods:
- A pilot study involving 30 college-age women.
- Administration of original and modified Exercise Self-efficacy Scales at two time points, one week apart.
- Analysis using intraclass correlation coefficient (ICC) for test-retest reliability and Cronbach's alpha for internal consistency.
Main Results:
- High correlation (.96) between original and modified scale scores.
- Excellent internal consistency for the original scale (Cronbach's alpha .96 at Time 1, .98 at Time 2).
- Excellent internal consistency for the modified scale (Cronbach's alpha .95 at Time 1, .98 at Time 2).
Conclusions:
- Both the original and modified Exercise Self-efficacy Scales exhibit strong test-retest reliability and internal consistency in college-age women.
- The findings support the continued use and potential modification of the ESS for assessing exercise self-efficacy.
- Recommendations are provided for future research utilizing the Exercise Self-efficacy Scale.
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