The fit between Strong-Campbell Interest Inventory General Occupational Themes and Holland's hexagonal model

James B. Rounds, Mark L Davison, RenéV Dawis

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Using a multidimensional scaling procedure, the present study examined the fit of Holland's RIASEC hexagon model to the internal relationships among the Strong-Campbell Interest Inventory (SCII) General Occupational Theme scales. SCII intercorrelation matrices for both sexes as reported in the SCII Manual were submitted, separately for each sex, to TORSCA 9 nonmetric scaling analysis. The Wakefield and Doughtie procedure was used to compare obtained TORSCA coordinates with expectations from Holland's hexagonal model. As a comparison, identical analyses were performed on Vocational Preference Inventory (VPI) scale intercorrelation matrices, these data having originally served as the basis for advancing the utility of the hexagon model. For females, the SCII-hexagon fit was not good, with a near reversal of the Social and Enterprising scales. For males, the SCII-hexagon fit was good. For either SCII or VPI scales, the female data met expectations from Holland's model less often than the male data. A replication study on SCII data for 305 female clients of a vocational assessment clinic confirmed the previously observed sex differences. Sex differences in the structure of vocational preferences are discussed.

Original languageEnglish (US)
Pages (from-to)303-315
Number of pages13
JournalJournal of Vocational Behavior
Issue number3
StatePublished - Dec 1979

Bibliographical note

Funding Information:
A grant for computer time was provided by the University of Minnesota Computer Center. The authors wish to thank Jo-Ida Hansen, Center for Interest Measurement Research, and Stanford University Press for providing a copy of the SC11 General Occupational Theme items and Ellen L. Betz and Cathy A. Redd for their helpful comments on an earlier draft of this paper. Requests for reprints should be sent to James B. Rounds, Jr., Department of Psychology, Elliott Hall, University of Minnesota, 75 East River Road, Minneapolis, MN 55455.

Copyright 2014 Elsevier B.V., All rights reserved.

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