This article offers a philosophical contribution to recent debates about the assessment of quality in educational research. It shows how criticisms of the quality of educational research--pointing to its failure to meet epistemic criteria of rigour and practical criteria of relevance--are an inevitable manifestation of the flawed assumption that…

This commentary observes that the contributions to this special issue of this journal not only show that the question of the relationship between research and practice is still very much alive today but they are also testimony to the persistent nature of this question. This suggests that the issue of the relationship between research and practice…

The notion that chronic stress fosters disease by activating the hypothalamic-pituitary adrenocortical (HPA) axis is featured prominently in many theories. The research linking chronic stress and HPA function is contradictory, however, with some studies reporting increased activation, and others reporting the opposite. This meta-analysis showed…

Risks of life on the street caused by inclement weather, harassment, and assault threaten the unsheltered homeless population. We address some challenges of enumerating the street homeless population by testing a novel capture-recapture (CR) estimation approach that models individuals' intermittent daytime visibility. We tested walking and…

The all-possible subset approach is recommended as an alternative over stepwise methods for selecting the best set of predictor variables for multiple regression. Several criteria are available for selecting the best subset model. These are compared with the principal component regression (PCR) method to investigate their usefulness for subset…

In 1896, Sigmund Freud stated that early childhood seduction caused hysteria in his female patients. He later recanted his original finding and claimed that the reports of abuse he heard from his patients were not descriptions of real events, but his patients' expressions of unconscious childhood wishes. The theory of the Oedipal complex gave…

Using data collected through telephone interviews with a national sample of adults, this study searched for evidence as to whether interviewers have stronger effects on the responses given to a wide range of questions by older people than on the responses of younger people. Responses to 30 items for which significant interviewer effects had…

The potential benefits of satellite communications development have been recognized since the notion of a geostationary "space platform" was proposed by Arthur C. Clarke in 1945. Although there have been examples of developmental applications of satellite technology, the promise has been slow in being fulfilled. The history of the…

Although field studies in human geography have some advantages over restricted classroom and laboratory studies, special methodological and ethical concerns arise. For example, field studies are able to take into account the complexity of events in natural settings as opposed to the controlled setting of a laboratory, particularly when subjects…

A discussion of constructing research designs that avoid the conflict between securing internal validity at the expense of external validity. Several such designs and examples of their application are offered. (HB)

A case for adopting participatory research methods in adult education, based on the research activities of the author while in Africa, is presented. Four shortcomings regarding survey research methodology and seven principles for developing participatory research methods are discussed. (LH)

A crucial question in any study is how representative the sample is of the population being studied at the time of the interview. This is of particular concern when the study is based on a follow-up of a sample of respondents initially interviewed for other purposes. This study evaluated the representativeness of a sample of elderly female…

Numerous misuses of statistics are described and illustrated, and ways of recognizing and avoiding such misuse are discussed. The following five categories of statistical misuse are identified: a lack of knowledge of the subject matter, the quality of the basic data, the preparation of the study and the report, the statistical methodology, and a…

A decision-making approach to the study of adolescents' risky behaviors is described in detail. In contrast to other approaches, the decision-making approach assumes only that risk taking involves choosing among alternative courses of action, and that the chosen alternative, by definition, entails some chance of loss. A short definition of risky…