Reliability and validity of the Outcome Expectations for Exercise Scale-2

Area of Science:

• Gerontology
• Exercise Science
• Psychometrics

Background:

• Physical activity is crucial for older adults' health.
• Understanding exercise outcome expectations is key to promoting adherence.
• A reliable measure is needed to assess these expectations in seniors.

Purpose of the Study:

• To test the reliability and validity of the Outcome Expectations for Exercise-2 Scale (OEE-2).
• To provide evidence for the OEE-2's utility in older adult populations.
• To inform the development of interventions for physical activity promotion.

Main Methods:

• Administered the 13-item OEE-2 scale to 161 continuing-care retirement community residents.
• Utilized confirmatory factor analysis and Rasch analysis for validity assessment.
• Evaluated reliability using alpha coefficients and separation indexes.

Main Results:

• Confirmatory factor analysis and Rasch analysis provided evidence of validity.
• Reliability was supported by alpha coefficients and separation reliability indexes.
• Suggested revisions for the OEE-2 scale were identified.

Conclusions:

• The OEE-2 scale demonstrates preliminary reliability and validity for assessing exercise outcome expectations in older adults.
• The scale can identify older adults needing interventions to improve exercise expectations.
• Further reliability and validity testing are recommended for the OEE-2.