Validation of an instrument to measure exercise of self‐care agency

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Abstract
The purpose of this study was to examine the reliability and construct validity of Kearney and Fleischer's (1979) Exercise of Self‐Care Agency Scale. The Self‐Directed Learning Readiness Scale (SDLRS) (Guglielmino, 1977) was used to test construct validity. Subjects consisted of 62 post‐basic nursing students and 57 adult diabetic patients. The results showed significant correlations between the scales for both groups. However, the relationship was stronger for the student group (r = 0.505) than for the patient group (r = 0.302). The Exercise of Self‐Control Agency Scale was significantly correlated with all eight factors of the SDLRS for the student group and with only three factors for the patient group. Split‐half reliability for the former scale was similar for both groups (r = 0.78 and 0.74); test‐retest reliability was lower for the patient group (r = 0.55) than for the student group (r = 0.76).

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