Testing the reliability and validity of the Self-Efficacy for Exercise scale.

Area of Science:

• Gerontology
• Exercise Science
• Psychometrics

Background:

• The Self-Efficacy for Exercise (SEE) Scale was adapted from an adult measure for older adults.
• This adaptation involved quantitative and qualitative research to ensure age-appropriateness.

Purpose of the Study:

• To evaluate the reliability and validity of the Self-Efficacy for Exercise (SEE) Scale in older adults.
• To confirm the scale's suitability for assessing exercise self-efficacy in this demographic.

Main Methods:

• The study involved 187 older adults (average age 85) from a continuing care retirement community.
• Data collection included face-to-face interviews using the SEE Scale, SF-12, and an exercise barriers scale.
• Exercise activity was self-reported, focusing on aerobic activities like walking, swimming, or biking.

Main Results:

• The SEE Scale demonstrated strong internal consistency (alpha = 0.92) and reliability (R2 = 0.38–0.76).
• Validity was supported by findings showing SF-12 health scores predicted efficacy expectations, which in turn predicted exercise activity.
• Lambda X estimates (≥ 0.81) further confirmed the scale's validity.

Conclusions:

• Preliminary findings support the reliability and validity of the SEE Scale for older adults.
• Further research is recommended with younger older adults and diverse socioeconomic and cultural groups.