Descriptive analyses of socially important or theoretically interesting phenomena and trends are a vital component of research in the behavioral, social, economic, and health sciences. Such analyses yield reliable results when using representative individual participant data (IPD) from studies with complex survey designs, including educational…

Coefficient Kappa is generally defined in terms of procedures of computation rather than in terms of a population. Here a population definition is proposed. Factors influencing the magnitude of Kappa are identified. Strategies to improve reliability are proposed, including that of combining multiple unreliable diagnoses. (Author/CTM)

Contrasts ideas of culture in social constructionist and cultural study research designs, addressing how each type of design impacts issues that can be analyzed in research studies. Explores implications for objectivity and validity in speculative cultural study research. Suggests how technical writing can be constituted as an object of study…

Since fixed and random facets may exist in objects of study as well as in conditions of observation, various modifications of the generalizability theory estimation formulas are required for different types of measurement designs. Various design modifications are proposed to improve reliability by reducing error variance. (Author/BW)

The authors examine the characteristics of a good research question and present a building-block approach for refining the question. They discuss the framework, how to formulate the question, and how to refine the question. A glossary of research terms is also included. (Editor/CT)

This article presents a fairly quick, easy way to decide what size sample is needed for a survey, given a desired level of confidence and degree of accuracy. The method proposed will work on any multiple response instrument. A technical mathematical explanation is also included. (GK)

A concise table is presented based on a general measure of magnitude of effect which allows direct determinations of statistical power over a practical range of values and alpha levels. The table also facilitates the setting of the research sample size needed to provide a given degree of power. (Author/CM)

Discusses ethical issues involved with person-based research. Discusses the ethical discourse embodied in the "Nuremberg Code," federal regulations, and the "Belmont Report." Discusses several specific issues in research ethics to illustrate how this discourse provides new ways of thinking about what must be done to treat…

Group research in special education is defined and its scope explained to encompass questions of description, difference, and relationship. Advantages of the group orientation over the single subject design are noted. Validity issues are examined. (CL)

Compares qualitative and quantitative research in terms of features, researcher role, design, data collection strategies, data analysis, and judgment. Offers advice about selecting a method. (SK)

Describes the discipline of epidemiology and the application of epidemiologic methods to the study of children's language disorders. Epidemiology is described as the study of the distributions and determinants of disease, disorders, disabilities, and desirable health events in populations. Common epidemiologic research designs are discussed.…

Addresses the use of subjective judgment in research that involves statistical/quantitative methods with regard to four aspects of quantitative research: (1) design; (2) preliminary analyses; (3) general analyses; and (4) specific analyses. (Contains 37 references.) (ASK)

The main features of a multiple site, structured case study design are presented. The nature of explanatory patterns, how case study investigators pursue and recognize valid patterns, and how an analyst can apply the same logic to cross-site analysis are discussed. (Author/BW)

Teachers are advised that analysis of covariance structures can be used to obtain estimates of variance components for use in generalizability analyses. Generalizability theory provides a flexible and practical framework for examining the psychometric properties of testing situations. This article illustrates the approach for fully crossed…

Conducting research about camp programs begins with asking a question and determining the nature of the question--whether it requires a needs assessment, an evaluation process, original data, or a cost/benefit analysis. Discusses factors to consider in deciding whether to allow existing staff members to conduct a study, or to contract with an…