This study used multilevel modeling of daily diary data to model within-person (state) and between-person (trait) components of coping variables. This application included the introduction of multilevel factor analysis (MFA) and a comparison of the predictive ability of these trait/state factors. Daily diary data were collected on a large (n =…

Speeded cognitive processing tasks involving card sorting and reaction time were administered to 141 young adults aged 18 to 33 and to 142 elderly adults aged 58 to 73. Confirmatory factor analysis was unsuccessful, but independent analyses revealed different factors for the two age groups. (Author/GDC)

Results of empirical comparisons of an inferential model of order analysis with factor analytic models were reported for two sets of data. On the prestructured data set both order and factor analytic models returned its dimensions of length, width and height, but on the random data set the factor analytic models indicated the presence of…

Twenty-three different methods of cluster analysis were compared in a four-stage sequential validation design. Results demonstrated that the solution given by Ward's method of cluster analysis was particularly powerful in comparison to solutions yielded by other techniques. (Author/JKS)

Arguments by J. Levin (1988) challenging the convergence properties of the Harman and Jones (1966) method of Minres factor analysis are shown to be invalid. Claims about the invalidity of a rank-one version of the Harman and Jones method are also refuted. (TJH)

Common approaches to examining the relationship between multitrait-multimethod (MTMM) data and variables outside the MTMM data are compared: averaging various means of each trait and estimating LISREL computer program models, and estimating only relationships between MTMM traits and the outside variables. Problems of correlational bias are…

A quantitative ethogram was developed for the zebra finch, using one-zero focal animal sampling on an ethologically comprehensive checklist of 52 behavioral items, and it was assessed for interobserver reliability and construct validity. Applying the quantitative methods of psychometrics allows verification of ethological theory and testing of…

Construct validity findings from Campbell-Fiske and LISREL confirmatory factor analyses of a multitrait-multimethod matrix were compared for 252 low-track and 588 high-track eleventh- and twelfth-grade students. The manner in which construct validity varies across groups is also discussed. (SLD)