A closer look at the psychological diversity within Holland interest types: Construct validation of the career insight questionnaire

The past years have been witness to a renewed attention for vocational interests in both theory and practice. In this context the present research aims to illustrate the relevance of finer-grained interest information next to more general information at the domain level. A recently developed and Holland-based interest instrument is presented and validated; it measures 15 interest components in addition to the more familiar Realistic, Investigative, Artistic, Social, Enterprising, and Conventional (RIASEC) domains. We provide evidence for (a) the hierarchical structure of specific interest components under broader interest domains and (b) the convergent validity of this instrument. Moreover, (c) the relevance of considering diversity within Holland types is illustrated by showing divergent associations with Big Five personality traits.

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