A linear structural model for comparing quasi-Markov models across populations is demonstrated. A confirmatory factor analysis formulation of the simplex model is also developed for between group comparisons. A variety of possible applications of this approach are suggested. (Author)

The validity conditions for univariate repeated measures designs are described. Attention is focused on the sphericity (equality of variance) requirement. It is recommended that separate rather than pooled error term procedures be routinely used to test a priori hypotheses. (Author/JKS)

The purpose of this paper is to demonstrate how many more subjects are required to achieve equal power when testing certain hypotheses concerning proportions if the randomized response technique is employed for estimating a population proportion instead of the conventional technique. (Author)

The methodological soundness of adult education research was examined through a power analysis of the statistical tests used in volumes 21-32 of Adult Education. Results indicate that the power of statistical tests appearing in the adult education research literature is low when researchers are interested in finding small and medium effects.…

The use of systems terms and ecological concepts is increasingly common in psychology, and in particular, community psychology. Interest in systems theory began with the development of general systems theory during the 1950's, and led to the adoption of an ecological-systems orientation which recognized the environment as a major determinant of…

Uncovers methodological, design, or questionnaire differences among surveys concerning youth labor force activity which may account for the discrepancies in employment and unemployment measures. (CT)

PhD and EdD dissertations were compared for research design, statistics, target populations, significance of results, age of subjects, and other characteristics. Analysis of 1,007 PhD and 960 EdD dissertations found PhD dissertations had more multivariate statistics and wider generalizability. EdD dissertations were more prevalent in educational…

A course was prepared by Planned Parenthood on the subject of human sexuality. The school district required an evaluation to determine effects, assess whether the instructional agency should be invited back, and to determine whether experiences should be continued. An action research approach was deemed appropriate. The objectives of the research…

A major problem in social science research is that of successfully carrying out the random assignment of persons to experimental and control groups. In this study a computer-based random assignment procedure operated successfully on a weekly basis for 17 consecutive weeks in a program serving over 360 ex-offenders. (CTM)

The developmental, defensive, and role-playing theories of parental identification were tested on high school seniors. Results supported the developmental (warmth) hypothesis but were inconsistent with the defensive and role-playing hypotheses. Previous studies on identification are cited. (Author/SJL)

In discussing the problems of evaluating Canadian bilingual immersion programs, six related aspects are separately considered: (1) the research design, (2) the students tested, (3) the nature of the tests used, (4) the methods of analysis employed, and (5) the interpretation of findings. (Author/SJL)

Identifies trends in educational achievement in the 1970s. Presents hypotheses concerning the relationship between research and gains/declines in educational achievement during that period. Discusses a project for individualized learning programs and its theoretical rationale, and describes a research project based on that educational improvement…

Results of a study involving approximately 220 student nurses indicate that the use of negation (e.g., not, except) should be avoided in stems of multiple-choice test items and that the single-response negatively worded item should often be converted to a multiple-response, positively worded item. (SLD)

The primary research problem confronting many experimental researchers is finding valid stimulus (instructional) and criterial (testing) materials that operationally fit their hypotheses. Five experimental studies have been completed, and two are in progress, using the Dwyer instructional materials to address the problem of finding valid…

Presents an overview of an approach in training Black masters-level students in research, with emphasis on research design, data collection, data analysis, and computer usage. (JCD)