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A Family of Differentiation Indices

Published online by Cambridge University Press:  01 January 2025

Ronaldo Iachan
Ronaldo Iachan*
Affiliation:
Iowa State University
*
Requests for reprints should be sent to Ronaldo Iachan, Statistical Laboratory, Snedecor Hall, Iowa State University, Ames, Iowa 50011.
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Abstract

A general class of differentiation indices is introduced for profiles of scores. Their ordinal properties and an application to Holland's classification system are examined. Comparison with other suggested indices is performed both theoretically and empirically.

Keywords

differentiation indicesordered scoresorder-preserving
Type
Original Paper
Information
Psychometrika , Volume 49 , Issue 2 , June 1984 , pp. 217 - 222
Copyright
Copyright © 1984 The Psychometric Society

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Footnotes

We are grateful to Professors J. Rayman and J. L. Holland for an interesting discussion. We would also like to thank Vera lachan for suggesting the problem.

References

Aderinto, K. M. (1975). Predicting initial achievement of college freshman using Holland's constructs in an urban, private in an urban, private, four year liberal arts college, Doctoral dissertation, Fordham University.Google Scholar
Aul, J. C. (1979). A New Index of Differentiation for Holland's Theory of Careers, Ph.D. dissertation, Case Western university.Google Scholar
Barlow, R. E. and Brunk, H. D. (1972). The isotonic regression problem and its dual. Journal of the American Statistical Association, 67, 140–147.CrossRefGoogle Scholar
Frantz, T., and Walsh, E. (1972). Exploration of Holland's Theory of vocational choice in graduate school environments. Journal of Vocational Behavior, 2, 223–232.CrossRefGoogle Scholar
Holland, J. L. (1968). Explorations of a theory of vocational choice: V I. a longitudinal study using a sample of typical college students. Journal of Applied Psychology, 52, 1–37.CrossRefGoogle Scholar
Holland, J. L. (1973). Making vocational choices: a theory of careers, Prentice Hall: Englewood Cliffs.Google Scholar
Holland, J. L., Gottfredson, G., and Nafziger, D. (1975). Testing the validity of some theoretical signs of vocational decision-making ability. Journal of Counseling Psychology, 22, 411–422.CrossRefGoogle Scholar
Iachan, R. (1983). Agreement and differentiation for ordinal data. Paper presented at the Social Statistics Section of the American Statistical Association meetings, Toronto.Google Scholar
Patil, G. P. and Taillie, C. (1982). Diversity as a concept and its measurement. Journal of the American Statistical Association, 77, 548–563.CrossRefGoogle Scholar
Peiser, C. and Meir, E. (1978). Congruency, consistency, and differentiation of vocational interests as predictors of vocational satisfaction and preference stability. Journal of Vocational Behavior, 12, 270–278.CrossRefGoogle Scholar
Robertson, T. and Wright, F. T. (1982). On measuring the conformity of a parameter set to a trend, with applications. Annals of Statistics, 10, 1234–1245.CrossRefGoogle Scholar
Spokane, A., and Walsh, W. (1978). Occupational level and Holland's theory for employed men and women. Journal of Vocational Behavior, 12, 145–154.CrossRefGoogle Scholar