Some years ago, B. Efron and his colleagues developed bootstrap resampling methods as a way of estimating the degree to which statistical results will replicate across variations in sample. A basic problem in the multivariate use of bootstrap procedures involves the requirement that the results across resamplings must be rotated to best fit in a…

In previous research, no relationship was found between test factor structure and test hierarchical structure. This study found some correspondence between test factor structure and test inter-item dependency structure, as measured by a log-linear model. There was an inconsistency, however, which warrants further study: more significant two-item…

A study examined the extent to which a 19-item short form of the Speech Evaluation Instrument (SEI) is a reliable instrument, what factor structure emerges from the analysis, and how that factor structure compares to that reported for the 30-item long form of the SEI. Subjects, 606 undergraduates enrolled in speech communications classes at two…

Through a review of the literature, this paper explores the viability of the rotation of canonical correlation analysis results. The similarities and dissimilarities between factor analysis and canonical correlation analysis are examined. The logic supporting a preference for the rotation of structure coefficients as opposed to function…

While scales assessing psychological well-being have been used both as criterion measures and as variables of interest in their own right, there has been little attempt to deal with the issue of the time-boundedness of perceived well-being. A study was undertaken to examine the combined factor structure of two measures of well-being, the…

Theory and common sense posit that the effect of a specific facet of self-concept on Global Esteem will vary with the importance placed on that facet, but no support for this interactive hypothesis was found. Unweighted averages of 12 distinct dimensions of self-concept from the Self Description Questionnaire III correlated about .7 with Global…

This study examined the psychometric pro-properties of the Test Anxiety Scale (TAS). Exploring the factor structure of the TAS was a major focus. Two hundred introductory psychology students completed the TAS. Both orthogonal (varimax) and oblique (direct quartimon) rotations were used to rotate obtained two- and three-factor solutions. The final…

The present study was designed to examine the construct validity, reliability, item difficulties, discrimination indices, effectiveness and efficiency of the CCAT test. (Author)

Applications to the Promax Rotation are discussed, and it is shown that these procedures solve Thurstone's hitherto intractable "invariant" box problem as well as other more common problems based on real data. (Author/RC)

In the present study three short factor scales, Poised Extraversion, Symptom-Free Adjustment, and Independent Thought and Action, were derived from the CPI. (Author)

Some type of difference or change score is frequently used to quantify the effects of experimental treatments and educational programs on individuals and on groups of individuals. Two studies investigated the tenability of the assumption that classroom instruction results in increases in students' achievement levels while the qualitative nature of…

This guide provides research workers with a means of identifying certain self-report temperament factors in factor analytic studies. It is intended to promote interpretation and comparison of one factor study with another. The body of the guide is organized in 28 sections, one for each factor, followed by the reference section and an appendix…

Scores on the four subtests of the old Medical College Admission Test (MCAT) and the six subtests of the new edition (1978) were factor analyzed. Scores were derived from similar groups of applicants. Two-factors, verbal-general information and science-quantitative, known from previous factorial studies of the old MCAT, emerged again. Five of the…