There are two general methods of cross-validation: empirical estimation, and formula estimation. In choosing a specific cross-validation procedure, one should consider both costs (e.g., inefficient use of available data in estimating regression parameters) and benefits (e.g., accuracy in estimating population cross-validity). Empirical…

The present investigation developed power curves for two parametric and two nonparametric procedures for testing the equality of population variances. Both normal and non-normal distributions were considered for the two group design with equal and unequal sample frequencies. The results indicated that when population distributions differed only in…

This memorandum responds to a request from the House Subcommittee on Census and Population for information concering the planning for the 1990 Census. It identifies eleven major issues concerning the implementation of the 1990 Census: (1) determination of who shall be counted; (2) provision of data for apportionment and redistricting; (3)…

Through utilization of effective sampling procedures, libraries may obtain substantial savings in terms of data collection costs. (Author)

The study was designed to ascertain whether or not attitudes held by college students toward certain proposed social actions were significantly favorable or unfavorable and whether or not there was any relationship between social class designation and the attitude variables. (Editor)

The aim of these pages is to provide some perspective on Project Zero's recent work, updating earlier accounts which have appeared in the Journal of Aesthetic Education and elsewhere. (Author)

Considered the therapeutic use of art, the current status of art therapy, and the growing need for art therapists in the future. (Author/RK)

This study deals with how long managers perceive it will take them to learn their positions, and how long their superiors and subordinates estimate it will take them to learn. (Author)

The purpose of this study was to determine the significance of grade-level as a contributor to the variance of Flanders' Categories when corrected for appropriate measures of individual teacher characteristics. (Author)

Article evaluated the merits of the practical test, regarded as a valuable one for measuring aspects of science achievement other than the aspects measured by paper-and-pencil type tests. (Author/RK)

This paper attempts to employ a model of occupational attainment proposed for the United States by Peter M. Blau and O. Dudley Duncan in order to test a series of propositions about the influence of societal development on the role of formal schooling in the occupational attainment process. (Author)

Describes the MANOVA (multivariate analysis of variance) Computer Program for ascertaining whether k groups differ significantly from one another on p dependent variables. (Author/RC)

Describes some of the situations in which a psychologist is likely to violate the assumption of independent errors. A Monte-Carlo study of the effects of this violation is then described. (Author/RC)

One of the aims of this study was to recognize whether a change had occurred in the self-concept of Returning Women Students (RWS) between a previous academic experience and their return to formal education. (Author/RK)