In this paper the parameter identifiability and estimation of a general dynamic structural model under indirect observation is considered from a system theoretic perspective. (Author/LMO)

Valuing of catharsis, cohesion, and insight by 161 group members in four settings community mental health (CMH), Veterans Administration, university counseling center, and group behavior class are reported. Results showed CMH group members value these factors more than other groups. Across all settings, cohesion and catharsis are valued higher…

Examined the relationship between traditional sex-role stereotypes about personality traits and children's judgments about themselves and their peers. Also investigated the development of androgynous orientations in children. (CMG)

Constructing scales on the basis of components analysis by assigning weights 1 to variables with high positive loadings on the components and -1 to variables with high negative loadings was compared with other strategies of scale construction, which assign weights 1 or -1 to variables with high weights for the components. (Author/BW)

Found substantial support for DSM-III's criteria for Post-Traumatic Stress using 405 Vietnam combat veterans and suggested that depression and anger be included as major signs. A comparison of symptom intensity between Vietnam veterans and non-Vietnam veterans showed Vietnam veterans experienced significantly greater intensities of DSM-III…

Factor analysis programs in SAS, BMDP, and SPSS are discussed and compared in terms of documentation, methods and options available, internal logic, computational accuracy, and results provided. Based on these comparisons, preferences for SAS and against SPSS factor analysis programs are recommended. (Author/JKS)

The Ross Educational Philosophical Inventory was psychometrically examined through the use of expert judges and factor analysis of a sample of responses to the inventory. Results are negative in general, but moderately positive results were found in relation to two of the four categories of the inventory. (JKS)

Some methods that analyze three-way arrays of data (including INDSCAL and CANDECOMP/PARAFAC) provide solutions that are not subject to arbitrary rotation. This property is studied in this paper by means of the "triple product" (A, B, C) of three matrices. (Author)

The appropriate use of exploratory factor analysis (EFA) necessitates thoughtful researcher judgment concerning a number of analytic decisions. This paper reviews some of the fundamental decisions necessary to conduct an EFA and examines reporting practice in published research across four journals. In general, insufficient information was given…

Personality structure, as measured by the Preschool Personality Questionnaire, was studied in preschool children. Two studies are reported which discuss factor analysis, including the ability factors of the PSPQ. (ST)

A shortcut formula for the computation of "coefficients of invariance" in the comparison of factor structures is presented. A limitation of the coefficient of invariance is pointed out in the case of comparing two first principal components. (NE)

A counterexample is produced to a conjecture by K. G. Joreskog concerning sufficiency conditions for uniqueness of a restricted factor matrix. A substitute condition is stated and proved for the most common situation where the restricted elements are specified to be zero. (Author)

This is a report of an experimental investigation of the interrelationships and effects of consideration and initiating structure in effective leadership. (LN)