Empirical validation of the Self-Identity Development Model of Oppressed People (SIDMOP) prompted the choice of a multi-methodological approach that would test the underlying theory and not the participants' ability to perform a matching task. Few identity developmental models of oppressed people have been systematically developed, and even fewer…

Lawrence Walker's (1984) meta-analysis of 108 samples concluded that there are no sex differences in stages of moral reasoning. This paper reviews Walker's work and points out that some of his analyses, however, are controversial and favored unwarranted conclusions. Walker neither tested the hypothesis that males are more advanced than females in…

This paper presents a critical evaluation of the research study Pygmalion in the Classroom by R. Rosenthal and L. Jacobson (New York: Holt, Rinehard and Winston, 1968) and reports an extensive reanalysis of the Rosenthal-Jacobson data. The Pygmalion study purported to show that children whose teachers expected them to "bloom"…

This document provides a current assessment of the role and character of longitudinal studies. Eighteen articles define this type of study, discuss its applications to the educational process, advise when to use longitudinal inquiry, and describe barriers formed by lack of statistical techniques in manipulating the data. The traditional argument…

This self-contained and self-instructional unit is intended for use by evaluation and development personnel and by students in introductory research and evaluation courses. The unit contains a discussion of the regression employing graphic illustrations with actual data. The user is introduced to the regression effect in the single group…

Using examples from evaluations of the Emergency School Aid Act (ESAA) Basic Grants Program, the ESAA Pilot Program, and the sustaining effects of compensatory education programs, school and student attrition are discussed. As in the example cases, appreciable attrition can be expected in most longitudinal studies. The possible effects of this…

This study estimated a component of within-school variance which has been overlooked in policy research studies and program evaluations performed to date: the effect on pupil performance of different teachers within a single school or program. Results indicated that teacher effects accounted for 30 to 40 percent of within-school variance. (Author/…

During round 16 of the National Longitudinal Survey of Youth (NLSY), 900 NLSY sample members were randomly assigned to be interviewed about the period since their round 14 interview. Their responses were compared to those of approximately 8,000 NLSY sample members who were assigned to be interviewed about the 1-year period since their round 15…

This paper poses a research question about how a person's work experience affects his or her earnings and shows how the Cumulative Experience Method (CEM) can provide an answer to the question using all available information in a longitudinal data set. (Author/GDC)

Reflects on some of the problems encountered in the authors' experimental approach to a study of reading comprehension. Discusses the limitations of experimental research, and presents an alternative to experimental or quantitative research, focusing on the relationship between teachers and learners as they interact in classrooms. (MM)

Criticizes data analysis and interpretation in "The Bell Curve:" Herrnstein and Murray do not actually study the "cognitive elite"; do not control for education when examining effects of cognitive ability on occupational outcomes, ignore, cultural diversity within broad ethnic groups (Asian Americans, Latinos), ignore gender…

A discussion of the use of meta-analysis to study the effects of student rating feedback on college teacher behavior traces the source of failure of the method and outlines the elements necessary for comprehensive meta-analysis. Researchers are cautioned to report their results more thoroughly and clearly. (Author/MSE)

Refutes criticisms by L. G. Carr and D. J. Ziegler of the author's predictions concerning mandatory busing in Norfolk, Virginia. Charges that Carr and Ziegler ignored or miscalculated statistical evidence. Concludes that canceling forced busing would have brought White students back to secondary schools, as it did to elementary schools. (SG)

Responds to Herbert Zimiles's criticisms in this issue of an overreliance on empirical, quantitative data in child development research, arguing that, although quantitative research has limitations, intuition is no substitute for a rigorous, systematic investigation of a hypothesis. (MDM)

The research literature provides important guidance to counselors working to keep abreast of the latest thinking regarding best practices and recently developed counseling tools. The purpose of this digest is to highlight a few errors that seem to recur within the literature, and to provide some helpful references that further explore these…