REFERENCES
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- Hanson, G.R. (1974). Assessing the career interests of college youth: Summary of research and applications (ACT Research Report No. 67). Iowa City: American College Testing Program.
- Hartman, B.W. & Hartman, P.T. (1982). The concurrent and predictive validity of the Career Decision Scale adapted for high school students. Journal of Vocational Behavior, 20, 244–252.
- Holland, J.L. (1973). Making vocational choices. Englewood Cliffs, NJ: Prentice-Hall.
- Holland, J.L. (1985). Making vocational choices (2nd ed.). Englewood Cliffs, NJ: Prentice-Hall.
- Osipow, S.H., Carney, C.G., & Barak, A. (1976). A scale of educational-vocational undecidedness: A typological approach. Journal of Vocational Behavior, 9, 233–243.
- Osipow, S.H., Carney, C.G., Winer, J., Yanico, B., & Koschier, M. (1976). Academic achievement: An examination of Holland's congruency, consistency, and differentiation predictions. Journal of Vocational Behavior, 14, 181–189.
- Prediger, D.J. (1981). Toward identification of the two dimensions underlying Holland's hexagon. Unpublished manuscript, American College Testing Program, Iowa City, IA.
- Prediger, D.J., & Lamb, R.R. (1981). Four-year validity of Holland types for college-based males and females. Journal of College Student Personnel. 22, 133–140.