Test-Retest Reliability and Validity Studies of the Skills Confidence Inventory

The present study investigated the test-retest reliability and construct validity of the Skills Confidence Inventory (SCI; Betz, Borgen, & Harmon, 1996), a measure of self-efficacy expectations with respect to the six Holland (1985a) themes. In a sample of 113 college students, 67 men and 46 women, test-retest reliability over a 3-week interval ranged from .83 (Realistic confidence) to .87 (Social confidence). In a sample of 345 students, 164 men and 181 women, evidence for the construct validity of the SCI was found. Results of a confirmatory factor analysis suggested a fair fit of the data to the six-factor structure of Holland's theory.