This report describes a test of the robustness of factor-analytic methods in the face of various types of scale transformations on the data. Because of the complexities that would be involved in an exact analytical investigation, the tests were done with simulated sets of data having different factor structures. After factor analyzing the original…

A comparison of four procedures for estimating common factor measurements was made using artificially synthesized "data" matrices. Score estimates were compared with respect to how well they approximated associated true factor scores and the extent of shrinkage in double cross-validation based on random samples. The Horst (1965), Bartlett (1937),…

The formulas which give the standard errors of factor loading estimates while available and computable are complicated, and our understanding of them is limited. A nontechnical description of their behavior under favorable and unfavorable conditions is given. Of particular interest is their behavior in the presence of singularities arising from…

To study the applicability of simple structure logic for factorial data from scientific disciplines outside psychology, four correlation matrices from each of six scientific areas were factor analyzed by five factoring methods. Resulting factor matrices were compared on two objective criteria of simple structure before and after rotation.…

In this methodological paper two indices are developed: a complexity index and an interpretation index. The complexity index is a positive number indicating on the average how many factors are used to explain each variable in a factor solution. The interpretation index will be positive ranging from zero to unity; unity representing a perfect…

Using a rotated varimax solution based on high school juniors, factor scores on the Vocational Interest Inventory were computed for 300 counseling clients. These factor scores were correlated with the 6 General Theme, 23 Basic Interest, and l24 Occupational Scales to the Strong-Campbell Interest Inventory. Based on the strength and direction of…

The stability of the structure underlying a fourteen item rating scale (the In-Training Evaluation Report) when completed on two different groups of medical candidates was investigated at the Royal College of Physicians and Surgeons of Canada. In addition the relationship between the rating scale score and scores on other measures such as multiple…

A factor analytic study investigated the validity of the California Psychological Inventory. Sixteen of the eighteen scales were investigated in relation to criterion variables and most showed that the factor scales were valid measures. (JKS)

Three methods were used to test the factor structure of the Eysenck Personality Inventory administered to 583 Australians. The preferred method was to extract factors by the minimum residual method, use the Tandem Criteria Method, and then rotate that number of factors by the Tandem Criteria I method. (SLD)

This study developed a questionnaire to: (1) identify the issues related to the design of parent education programs and their dimensions and (2) provide an empirical basis for their resolution. Results indicated that the dimensions of parent education could be specified in terms useful for program planners. (Author/LMO)

Construct validity was demonstrated for sixteen career subclusters through factor analysis of an occupational inventory based on interests in professional level job activities. (Author/LMO)

The Dysfunctional Attitude Scale-Form A was completed by 664 university students and the results were factor-analyzed. Approximately 61 percent of the variance was accounted for by two factors, labelled Performance Evaluation and Approval by Others. Analyses conducted on two subsamples indicated that the obtained factor solution was stable.…

Examined factor structure of Hoelter's Multidimensional Fear of Death Scale, which was translated into Arabic and administered to 84 Saudi Arabian students temporarily living in the United States. The factor structure obtained partially supports the factor structure first obtained for a United States sample, and later replicated for a New Zealand…

Explored the nature of the Wechsler Intelligence Scale for Children-Revised third factor, Freedom from Distractibility, by factor analyzing its relations with constructs underlying selected neuropsychological measures. Results indicated the abilities tapped by Factor 3 are more complex than its name suggests. (MCF)

The consistency of factor structure of Osgood's semantic differential was examined in three different adult samples, aged 18 to 87. Three different concepts were used: the University of West Florida, Myself, and Death. Results indicated consistency for the evaluation factor and moderate consistency for potency and activity. (Author/GDC)