The factor structure of Holland's hexagonal model as shown in the Self-Directed Search (SDS) has received extensive attention across the world. The goal in creating the SDS was to equip guidance counselors and services with information about adults' personality types, interests, preferences, and career options. More precisely, the SDS items assess…

Describes two new measures of consistency which refer to the extent to which more closely related scale types are found together in Holland's Self-Directed Search sort. One measure is based on the hexagonal model for use with three-point codes. The other is based on conditional probabilities for use with two-point codes. (Author/ABL)

Assessed predictability of Holland's Investigative personality--Self-Directed Search (SDS)--and three consistency levels over seven-year period. Results indicated that for Investigative-type males, SDS has moderately high efficiency in predicting actual job entry, graduate major, and ideal and projected career plans. Differential predictability of…

Findings suggest that a woman will obtain a different Holland code depending on what instrument or what set of scales within an instrument is used to establish that code. This phenomenon could reflect sample characteristics equally as much as any bias in the measures. (Author)

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…