Development and Evaluation of the Eight-Item Caregiver Self-Efficacy Scale (CSES-8)

This paper describes the development and evaluation of a short caregiving self-efficacy measure. The self-administered 8-item Caregiver Self-Efficacy Scale (CSES-8) was developed to reflect components of typical caregiver support interventions and to be practical for inclusion in future self-efficacy and caregiving research.

We administered the CSES-8 in 2 samples: participants in an intervention for caregivers of persons with cognitive disabilities, and a voluntary online survey for caregivers of adults. We evaluated the completion rate, item-scale correlations, reliability, descriptive statistics, and preliminary construct validity of the CSES-8 in both samples, and sensitivity to change in the intervention sample.

The intervention caregivers' sample (N = 158) was 85% female (mean age = 65 years). The online survey sample (N = 138) was 90% female (mean age = 78). In both samples, the CSES-8 had excellent internal consistency reliability (.89 and .88) and good distribution with sufficient variability to detect change. Test-retest reliability was good in the online sample (.73). As evidence of construct validity, most hypotheses were confirmed in both samples. The CSES-8 was sensitive to change at 6 months for caregivers in the intervention program (p < .001).

The CSES-8 is short, comprehensive with respect to common components of interventions to improve caregivers' quality of life, and sensitive to change. It can serve a useful role exploring mechanisms by which caregiver intervention studies work, and it can be helpful in examining whether self-efficacy mediates the effect of these interventions on various outcomes such as psychological well-being.