The number of items in the California Psychological Inventory (CPI) was reduced from 480 to 240 by selecting items representative of factors obtained by separate factor analyses of the 18 scales. Correlations of the short form with the standard scales, the factor structure of the short form, cross-validated regression equations to estimate standard scale scores, and test-retest reliability coefficients indicated that the short form was a reasonable alternative to the complete inventory in situations where time savings are required.
References
1.
GoldbergL. R.Objective diagnostic tests and measures. Annual Review of Psychology, 1974, 25, 343–366.
2.
GoughH. G.Manual for the Personal Values Abstract. Palo Alto, Calif.: Consulting Psychologists Press, 1967.
3.
GoughH. G.Manual for the California Psychological Inventory. (Rev. ed.) Palo Alto, Calif.: Consulting Psychologists Press, 1969.
4.
KincannonJ. C.Prediction of the standard MMPI scale scores from 71 items: The Mini-Mult. Journal of Consulting and Clinical Psychology, 1968, 33, 319–325.
5.
MegargeeE. I.The California Psychological Inventory handbook. San Francisco: Jossey-Bass, 1972.
