We tested the validity of 6 methods (mean difference, variance difference, bivariate, profile agreement, pattern similarity, and intraclass) to assess change in a personality profile. During their first 2 months of college, 372 students completed reactive and spontaneous measures of their personality. Eight weeks later, 300 returned to complete a second set of the same measures and noted change in their spontaneous personality list. Sixty participants returned during their second semester to complete a third set of assessments. The bivariate and intraclass change coefficients showed consistent convergent, discriminant, and concurrent validity across time points. Recommendations and caveats for using these coefficients are discussed.
Gore, J. S., Cross, S. E., & Russell, D. W. (2013). Assessing Change in a Personality Profile. The American Journal of Psychology, 126(1), 81-94. DOI: 10.5406/amerjpsyc.126.1.0081