Missing data is endemic in much educational research. However, practices such as step-wise regression common in the educational research literature have been shown to be dangerous when significant data are missing, and multiple imputation (MI) is generally recommended by statisticians. In this paper, we provide a review of these advances and their…

Two basic data sources required for research studies have been secondary and primary. Secondary data collection helps the researcher to provide relevant background to the study and are, in most cases, available for retrieval from recorded sources. Primary data collection requires the researcher to venture into the field where the study is to take…

A major problem of research into religion is whether religion is uni- or multi-dimensional; a model maintaining the advantages of both approaches is suggested with general religiousness as a broad construct (higher order factor) that is subdivided into a set of more specific factors. (CMG)

One of six summaries of workshop sessions (See TM 000 130), designed to strengthen the evaluation of costly programs and their effects, this handbook presents an analysis of both random and nonrandom sampling errors by application of the Bayesian model. This model attempts to formalize the process and procedures of inference from data through…

This study develops a three-stage model of the question-answering process and investigates several potential sources of extraneous variability. Discussion includes implications of findings concerning what it means to "use" library materials and services, adverbs used as response category labels, and subject's responses as predictors of…

Eight established methodologies were evaluated and compared in this preliminary study, which was conducted to resolve methodological questions and problems and develop an adequate approach for the collection of valid, generalizable data for an extensive study of family use of television. The study focused on four variables: which family members…

Directors of Research and Evaluation in school districts were surveyed about their methods in making school enrollment projections. The questionnaire covered school district size, minority enrollment, staff responsibility for performing projections, acceptable levels of accuracy, methodology used, special considerations, and use of the data. Fifty…

Reviewing their "Classroom Environment Study: Teaching for Learning" and other teaching research literature, project personnel examine the limitations of the process-product paradigm typically used in research on teaching. Topics covered include a conceptual model for teaching; preservice and inservice teacher training; appropriate…

This study uses a production function approach to identify the impact of student, parent, teacher, and school policy variables on student performance as measured by test scores. Our statistical analysis is conducted in a comparative institutional context that includes government, private, and non-governmental organization schools. We find that, at…

Research and instructional role strains are identified, based on the use of large-scale mail surveys for college self-study that are used to teach introductory research methodology. The two organizational hierarchies, the research model and the instructional model, are examined. Experiences at Northwestern University, Northeastern Illinois…