This paper is based in part upon a doctoral dissertation completed at the University of Missouri under the supervision of John F. McGowan.

Academic psychology has long been composed of two disciplines, one experimental and one correlational. These two disciplines each developed their own method of studying structure in data: multidimensional scaling (MDS) and factor analysis. Both methods use similar kinds of input data, proximity measures on object pairs. Both represent the object…

We are concerned with the hypothesis that two variables have a perfect disattenuated correlation, hence measure the same trait except for errors of measurement. This hypothesis is equivalent to saying, within the adopted model, that true scores of two psychological tests satisfy a linear relation. A statistical test of this hypothesis is derived…

Many researchers have questioned the validity of the underlying assumptions, the psychometric properties, and conceptualizations for both the older and new measures that generate two independent scores for masculinity and femininity. The assumptions of bipolarity and unidimensionality and the construct validity of existing masculinity/femininity…

A comprehensive evaluation of the present state of infant and preschool mental testing in the United States is the concern of this monograph by the Society for Research in Child Development. Literature, technical and professional, covering the concept of intelligence and its measurement, was reviewed, organized, and summarized (chapters II and…

An experimental study examined the possibility that proximity error could bias results from semantic differential questionnaires. Proximity error occurs when, due to the ordering, or polarity, of the differential scales, one answer on the semantic differential results in another answer to a subsequent question being substantially changed from what…

This conference focuses upon various aspects of testing within a society, and upon technical advances in measurement. Philip H. DuBois's paper deals with China, a society dominated by tests, from 1115 BC--1905 AD. Donald W. Fiske discusses the effect of testing on the individual in modern America in his paper, "The Subject Looks at…

Cognitive differences between 987 LD children and 178 EH children in public schools on a psychoeducational assessment battery were studied, and differences in factor structure were investigated. Caution is suggested in interpreting the results of multivariate statistical analyses, which indicated heterogeneity in the matrices of LD and EH…