Hierarchical data analyses in different discipline areas are reviewed in this article to compare statistical applications between the Hierarchical Linear Model (HLM) software and the Statistical Analysis System (SAS) MIXED procedure. Similar features of the two software programs are illustrated through reconfirmation of an HLM example using the…

Similarities and differences in the univariate and multivariate analysis of repeated measures designs are discussed, using a hypothetical data set studying the effects of practice on the algebra performance of four students to illustrate both methods. When data are analyzed through the univariate approach and the homogeneity assumption is…

Describes the workings of a simple two-way table of employment status by sex and extends this table to include school enrollment status by sex, race, and high school graduation status using logistic regression techniques. (JOW)

After presenting a general linear model as a framework for discussion, this paper reviews five methodology errors that occur in educational research: (1) the use of stepwise methods; (2) the failure to consider in result interpretation the context specificity of analytic weights (e.g., regression beta weights, factor pattern coefficients,…

Research methods used in articles published in the "American Educational Research Journal" (AERJ), "Educational Researcher" (ER), and the "Review of Educational Research" (RER) were studied for the years 1978 to 1997. Articles were read to identify and categorize the research methods and statistical techniques used in…

In educational effectiveness research, multilevel models are increasingly used because these models take the multilevel structure of the data into account. In this paper, the effect of ignoring one or more levels of variation in hierarchical linear regression is explored, using a model with four hierarchical levels (individual pupil, class group,…

In this study, 484 dissertations written from 1976 to 1985 were reviewed to determine the content of curriculum dissertations and the methodology employed. "Dissertation Abstracts International" was the data source for dissertations. Sixteen categories emerged as appropriate for classifying the content foci of the studies. Descriptions and…

This paper provides researchers with a method of determining sample size for a given power level in the preparation of a single group exploratory repeated measure analysis. The rationale for determining sample size which takes into consideration the powers and assumptions of both the adjusted univariate and multivariate repeated measures tests is…

As an extension of B. Thompson's 1998 invited address to the American Educational Research Association, this paper cites two additional common faux pas in research methodology and explores some research issues for the future. These two errors in methodology are the use of univariate analyses in the presence of multiple outcome variables (with the…

Reports on initial steps in performing linguistic analyses on textual material found in a bibliographic database and suggests that useful data can be provided for information retrieval systems by using research methods from linguistic inquiry. Searches of noun phrases in the ERIC database are described, and further research is suggested. (10…

This publication describes some of the work of the UNESCO Division of Statistics on Education on the evaluation of the internal efficiency of educational systems that followed from the 1970 International Conference on Education. The first section contains a brief summary of the conclusions of the "Expert Meeting on the Evaluation of Internal…

This paper presents a comprehensive framework for the evaluation of online bibliographic retrieval services and provides an example of its use with the Educational Information System for Ontario (EISO). A systems approach, incorporating traditional categories of input, output, process, and feedback, is used to develop the model; in its…

Includes three articles about research in the school library media field: (1) "The State of Research Today" (Michael B. Eisenberg) (2) "Recent Trends in School Library Media Research" (Robert Grover and Susan G. Fowler); and (3) "Notes from ERIC" (Barbara Minor) provides references to 10 research overviews and…

Psychology studies often have low statistical power. Sample size tables, as given by J. Cohen (1988), may be used to increase power, but they are based on Monte Carlo studies of relatively "tame" mathematical distributions, as compared to psychology data sets. In this study, Monte Carlo methods were used to investigate Type I and Type II…

This study was conducted to determine if viewing a commercially prepared videotape containing written and aural subliminal messages was more effective at producing weight loss than a videotape containing the same content, but without the subliminals. Participants included undergraduate and graduate students from Iowa State University (N=51) who…