Results of the Self-Directed Search (SDS) completed by 305 male and 395 female students supported the convergent and discriminant validity of the SDS and of a hierarchically nested structural model. Contradictory conclusions were reached about construct validity. (SK)

Meta-analysis of 24 samples demonstrated overlap between Holland's vocational interest domains (measured by Self Directed Search, Strong Interest Inventory, and Vocational Preference Inventory) and Big Five personality factors (measured by Revised NEO Personalty Inventory). The link is stronger for five interest-personality pairs:…

Seventy-five male and 77 female college students completed the Personality Adjective Check List and Self-Directed Search. Results show that Millon's personality styles and Holland's occupational types are reliably linked, seeming closest in the concept of social dominance-submission and emotionality-restraint and most divergent in the view of…

Career assessment activities in the Self-Directed Search and constructs in Holland's theory increase understanding of an individual's personal career theory (PCT). The PCT provides information about a person's readiness for career decision making and the types of career interventions that might be effective. (Author/SK)

Examination of two-letter high-point code frequency tables of four Self-Directed Search samples and Holland's translation of occupational titles verified the fit of the circumplex model, supporting Holland's person-environment hypothesis. (SK)

Studies social personality types and assesses the relationship of Holland's secondary construct of consistency to persistence in college and academic achievement. Results indicated that, for both persisters and nonpersisters in college, subjects with higher levels of consistency achieve higher college grade point averages than subjects with lower…

Examined race and sex differences in personality profile among nursing students. The Self Directed Search was administered to students entering baccalaureate nursing programs. Results generally supported Holland's typology. Race and sex differences in SDS codes were not significant. Some differences were found in socioeconomic characteristics.…

Examined relationship between membership in adolescent social crowds and vocational identity in early adulthood. In four samples (N=274), membership in five junior high school crowds (Motorheads, Brains, Freaks, Politicos, Conformists) was associated with higher scores on Realistic, Investigative, Artistic, Enterprising, and Conventional scales,…