Path analyses of two multitrait-multimethod matrices are used as examples of the kind of information afforded by application of the technique. It is concluded that the technique should be of considerable aid to researchers who want to evaluate the convergent and discriminant validity of their measures. (Author/CTM)

The problems of two way analysis of variance designs with unequal and disproportionate cell sizes are discussed. A variety of solutions are discussed and a new solution is presented. (JKS)

Several approaches to the teaching of matrices are discussed. (SD)

A multiple time series is defined as the sum of an autoregressive process on a line and independent Gaussian white noise or a hyperplane that goes through the origin and intersects the line at a single point. This process is a multiple autoregressive time series in which the regression matrices satisfy suitable conditions. For a related article…

Correspondence analysis can provide spatial or clustering representations by assigning spatial coordinates minimizing the distance between individuals linked by a sociometric relationship. These scales may then be used to identify individuals' locations in a multidimensional representation of a group's structure or to reorder the rows and columns…

Computer sampling from a multivariate normal spherical population was used to evaluate the type one error rates for a test of sphericity based on the distribution of the determinant of the sample correlation matrix. (Author/LMO)

The present study compares the performance of phi coefficients and tetrachorics along two dimensions of factor recovery in binary data. These dimensions are (1) accuracy of nontrivial factor identifications; and (2) factor structure recovery given a priori knowledge of the correct number of factors to rotate. (Author/LMO)

Explains an application of matrix algebra which involves probability matrices and weather predictions. Using probabilities of sunny or cloudy weather students can determine the effect weather on day one will have on subsequent days. (DH)

A general description of microcomputer-based spreadsheet software capabilities and their usefulness in library management analysis and planning are presented. Five specific spreadsheet models which apply to retrospective conversion cost and scheduling, COM and book catalog costs, and acquistions processing costs are discussed and displayed in…

The Welch-James procedure may be used to test hypothesis on means, when independent samples from populations with heterogenous variances are available. Summation formulas for the Welch-James procedure are presented for the 2x2 design. Matrix formulas that permit routine application of the procedure to crossed factorial designs are presented.…

This report summarizes information from the faculty matrix prepared to demonstrate the patterns of faculty employment at Nova Southeastern University (Florida) in 1997. In the fall term of 1997, Nova Southeastern University employed 1,360 faculty members. Of these faculty members, approximately 39% were full time, and the remainder were part time.…

This study investigated the perceptions of educational leadership candidates of the efficacy of a leadership matrix based on the University of Wyomings belief matrix model for guiding the examination, clarification, and articulation of their beliefs. A pilot study involving 15 administrator certification candidates suggested the usefulness of the…