Research has increasingly focused on the intersection between gender diversity and autism. Understanding the foci, methods, and rigor of recent studies could help guide and maximize impact in this accelerating research area. We conducted a scoping review of peer-reviewed literature on this topic published between 2018 and 2023. The search…

Experimental studies are often employed to test the effectiveness of teaching innovations such as new pedagogy, curriculum, or learning resources. This article offers guidance on good practice in developing research designs, and in drawing conclusions from published reports. Random control trials potentially support the use of statistical…

A number of studies have used mindfulness-based interventions to influence the behavior of people with intellectual disabilities, to improve their quality of life, and to reduce challenging behavior. The present review critically evaluates 18 studies and assesses the clinical and academic impact of their findings. Strengths identified included…

The lack of a unified definition of giftedness leads researchers to use very different operationalizations when selecting a sample of gifted individuals for use in research. We found 104 empirical articles from 38 journals that differentiated between gifted and nongifted students which were analyzed to determine the most common methods of…

It is argued that time generalizability exists independent of population and situation generalizability, although the three may interact. Problems associated with sampling and randomization efficacy over time are discussed. (Author/GK)

Addresses issue of range enhancement effects on correlations, asserting that, while adding to or deleting from sample can affect variance and correlation in sample, increases or decreases in individual differences in intact sample resulting from such factors as history, maturation, training, and experience will not necessarily affect correlations.…

A conceptualization of generalization and its place in educational research is proposed. Problems with existing approaches to generalization include limited concepts, misleading or simplistic results, perception variance or change, and the discouragement of sensitivity due to convenience. Researchers should distinguish between conclusions which…

Numerous forms and meanings of validity have been developed to provide researchers with the opportunity to assess the many potential sources of ambiguity that exist in any research finding. A Validity Network Schema (VNS) developed by Brinberg & McGrath (1982) is extended and elaborated in order to describe the components of the research…

A strategy proposed by T. Cook and D. Campbell (1979) was used to investigate attrition in a community-based literacy program, focusing on 287 Head Start families. Data revealed interactions among intervention program-centered characteristics and person-centered characteristics that have implications for study validity and generalizability.…

This study examined 40 articles published in the "American Journal on Mental Retardation" or the "Journal of the Association for Persons with Severe Handicaps" (JASH) from 1976-78 and 1986-88. Both journals published low numbers of articles with ecological validity in the late 1970s, but JASH subsequently increased…

This study examined 40 articles published in the "American Journal on Mental Retardation" or the "Journal of the Association for Persons with Severe Handicaps" (JASH) from 1976-78 and 1986-88. Both journals published low numbers of articles with ecological validity in the late 1970s, but JASH subsequently increased…

Argues that the clinical trial paradigm is the wrong model for educational research. Interpretive case study research suggests that the best thing policymakers can do for educational improvement is to give local educators and school communities more freedom and funding to work out their own ways to improve practice. (SLD)

Dismissing research that is not theory driven, hypothesis testing, or generalization producing does injustice to the variety of contributions that qualitative research can make. Studies conducted through qualitative approaches are reviewed to summarize the desirable outcomes that can result. No research model has a monopoly on quality. (SLD)

Primary research on student ratings of instruction is reviewed, and questions about the validity of such ratings as measures of teacher effectiveness are explored using nomological coding of 43 validity studies to examine causes of variability in coefficients of validity. Deficiencies of prior analyses and research needs are identified. (SLD)