Abstract
Kelly's (1955) repertory grid has been applied in vocational counseling and research for over 30 years, enjoying a number of adaptations that have had a documented impact on the structural measures it yields. This study reports, for the first time, the reliabilities associated with three structural scores derived from various forms of the vocational reptest. In general, across the three factors studied (i.e., type of construct used, favorability of occupations considered, and sex of the test taker), 1-week test-retest reliabilities were moderately high for measures of vocational differentiation (r = .73), integration (r = .75), and conflict (r = .85). Nonetheless, the range of reliabilities for various forms of the reptest indicated considerable variability, alerting the counselor and researcher to the likelihood that different forms of the vocational reptest may yield differentially stable measures.
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