This paper provides a guide to calculating statistical power for the complex multilevel designs that are used in most field studies in education research. For multilevel evaluation studies in the field of education, it is important to account for the impact of clustering on the standard errors of estimates of treatment effects. Using ideas from…

This book provides a uniquely accessible introduction to multilevel modeling, a powerful tool for analyzing relationships between an individual level dependent variable, such as student reading achievement, and individual-level and contextual explanatory factors, such as gender and neighborhood quality. Helping readers build on the statistical…

Trend analysis is explained in nontechnical language with examples given for both parametric and nonparametric situations. Similarities and differences between parametric and nonparametric trend analyses are conveniently charted. Practical research applications for Directors of Testing and Directors of Institutional Research are stressed. A linear…

This bulletin for the researcher, the doctoral or master's candidate, or teacher interested in and/or conducting research is intended to (1) alert novice investigators to the major requirements and pitfalls of survey and experimental research, (2) point out the weaknesses of past business education studies, and (3) provide consumers of research…

The National Food and Agriculture Council of the Philippines regularly requires rapid feedback data for analysis, which will assist in monitoring programs to improve and increase the production of selected crops by small scale farmers. Since many other development programs in various subject matter areas also require similar statistical…

Educational practitioners tend to resist or avoid doing educational research primarily for two reasons: their prior experience with statistics, computers, and research design has produced insecurity and anxiety; and, they have acquired a basic misunderstanding of the nature and purpose of research. Good research should be both technically sound…

This manual is intended to improve both the design of longitudinal studies and analysis of the resulting data. Issues related to educational and developmental research have been emphasized in these eight chapters. Topics of particular interest to longitudinal researchers include stochastic models of developmental change, mathematical…

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…

This module on research design in vocational education is one of a set of five on evaluation and research and is part of a larger series of thirty-four modules constituting a core curriculum for use in the professional preparation of vocational educators in the areas of agricultural, business, home economics, and industrial education. Following…

This speech presents the use of experimental designs and research procedures to help counselors develop effective treatment methods for clients. Baseline and treatment phases are delineated as the two basic phases occuring in most "N=1" designs. These designs are divided into the categories of single and multiple time series designs. The…

This overview of the research process for the novice information retrieval (IR) researcher provides guidance on selecting a research question, choosing the type of test, defining variables, developing or using databases, finding and processing queries, assigning treatments to experimental units, collecting and analyzing the data, and presenting…

These guidelines, which summarize the content of desegregation program evaluation studies, are organized into five chapters. The first is an "Introduction and Overview." Chapter 2 specifies desegregation program variables which are important in planning and designing evaluation studies. The structural and student variables that are required in the…