A kindergarten teacher reviews research findings on aspects of children's diet that may influence behavior and the ability to learn. Introductory discussion presents vignettes relating kindergarten children's behavioral responses to dietary intake. A brief background section offering dietary tips is followed by relatively extended discussions of…

This paper presents a model which illustrates the cyclical and interactive nature of the basic elements of the research design process. Rather than presenting each research design component in isolation, the model emphasizes their interrelationships. A brief discussion is presented on each of the following components of the model: (1) the "words"…

This report presents the key findings and recommendations of the Advisory Panel for the Head Start Evaluation Design Project. The principal audiences for the report are: (1) leadership and staff of the Administration for Children, Youth, and Families (ACYF) who have administrative responsibility for Head Start; and (2) local Head Start programs.…

Researchers increasingly recognize that significance tests are limited in their ability to inform scientific practice. Common errors in interpreting significance tests and three strategies for augmenting the interpretation of significance test results are illustrated. The first strategy for augmenting the interpretation of significance tests…

Although there have been frequent calls for over-time research in mass communication, there are still many reasons that researchers use simpler designs. Each approach: two-time point, panel/repeated measures, and time-series experimental designs, offers its own advantages and disadvantages. By examining the benefits and disadvantages of each…

Tested were two elaborations of research design which were implemented to explain inconsistent findings concerning levels of father involvement in child rearing when the mother is employed. The first elaboration was to study separate dimensions of fathering participation, rather than treating it as a unitary factor. The second elaboration was to…

Kaplan (1964) describes the now classic distinction between "logic-in-use," the more or less logical cognitive style and procedures used by the educational scientist, and "reconstructed logic," the scientist's after-the-fact, explicit formulation and idealization of the logic and procedures. However, most technical documents…

This chapter advocates the use of naturalistic inquiry as a method for undertaking unobtrusive research in instructional development. The advantages of naturalistic inquiry are listed, and it is suggested that these advantages make this form of research very useful to the field of instructional development. It is argued that both naturalistic…

Social scientists tend to adopt either a qualitative or a quantitative perspective in research on social support. As single methods, each perspective has unique distinctions, limitations, and trade-offs. These approaches are based on differing epistemological assumptions. Qualitative research attempts to understand human behavior from the…

Examination of seven refereed journals over a 10-year period (1977-1986) identified 28 papers using single-subject research methodology in studies involving preschool-aged children with handicaps or their families. Five types of single-subject designs were found to be used both alone and in various combinations. Of the 30 research designs…

The use of messages as experimental stimuli brings with it problems regarding the interpretability and generalizability of findings. Some psychologists and communication researchers have argued that message stimuli must be treated as random effects. A review of the literature examined data regarding experimental designs used in recent…

This first interim report of the National Assessment of Vocational Education is intended to provide Congress with information that has emerged from some of the research conducted to date and to describe all the research projects underway. The report has two parts. The first part discusses trends in vocational education and issues concerning…

A major debate exists in the neuropsychology community concerning whether case study is preferable to group study of brain-damaged patients. So far, the discussion has been limited to the advantages and disadvantages of both methods, with the assumption that neurolinguists pursue a single goal attainable by one or the other method. Practical…

A brief review of research on protective factors that allow some individuals to make healthy adaptations despite debilitating circumstances precedes a critical discussion of symposium papers. The discussion is organized around three questions. First, does the search for protective factors demonstrate an important programmatic shift in…

The discourse classification systems used most frequently by reseachers in composition credit A. Bain, J. Moffett, J. Emig, J. Kinneavy, J. Britton, and R. Lloyd-Jones. A majority of the studies that have included discourse types as a major focus of their work were designed to investigate students' syntactic structures. Other studies focused on…