Dependent variables in psychological research often take the form of test profiles. A computer program is described which provides comprehensive information on profile differences among independent groups based upon profile centroid separation, shape, elevation, and scatter. Descriptive statistics, univariate and multivariate measures of strength of association, test of homogeneity of covariance matrices, and comparative mean plots also are provided.
Get full access to this article
View all access options for this article.
References
1.
Box, G. E. P. (1950). Problems in analysis of growth and wear curves. Biometrics, 6, 362-389.
2.
Cattell, R. B. , Eber, H. W., and Tatsuoka, M. M. (1970). Handbook for the Sixteen Personality Factors Questionnaire. Champaign, IL: Institute for Personality and Ability Testing.
3.
Cramer, E. M. and Nicewander, W. A. (1979). Some symmetric, invariant measures of multivariate association. Psychometrika, 44, 43-54.
4.
Harris, R. J. (1975). A primer of multivariate statistics. New York: Academic Press.
5.
Hathaway, S. R. and McKinley, J. C. (1951). Multiphasic Personality Inventory manual. New York: Psychological Corporation.
6.
Hays, W. (1981). Statistics (3rd ed.). New York: Holt, Rinehart, and Winston.
7.
Jackson, D. M. (1974). Personality Research Form manual. Goshen, NY: Research Psychologists Press.
8.
Plake, B. S. , Reynolds, C. R., and Gutkin, T. B. (1981). A technique for the comparison of profile variability between independent groups. Journal of Clinical Psychology, 37,142-146.
9.
SAS Institute. (1982). SAS user's guide: Basics, 1982 edition. Cary, NC: SAS Institute.
10.
Skinner, H. A. (1978). Differentiating the contribution of elevation, scatter and shape in profile similarity. Educational and Psychological Measurement, 38, 297-308
11.
Tatsuoka, M. M. (1970). Discriminant analysis. Champaign, IL: Institute for Personality and Ability Testing.
12.
Wechsler, D. (1974). Manual for the Wechsler Intelligence Scale for Children-Revised. New York: Psychological Corporation.
