This paper examines sources of potential bias in systematic reviews and meta-analyses which can distort their findings, leading to problems with interpretation and application by practitioners and policymakers. It follows from an article that was published in the "Canadian Journal of Communication" in 1990, "Integrating Research…

In cross-cultural child development research there is often a need to translate instruments and instructions to languages other than English. Typically, the translation process focuses on ensuring linguistic equivalence. However, establishment of linguistic equivalence through translation techniques is often not sufficient to guard against…

Tests the hypotheses that overconfidence occurs when strength is high and weight is low and that underconfidence occurs when weight is high and strength is low in 4 experiments with 153 students. Discusses weighing evidence, overconfidence/underconfidence in intuitive judgments, and item difficulty's effect on overconfidence. Relates the…

Addresses concerns about the trustworthiness of research results derived from image-based data, particularly questions of validity assessment. Compares examples of such research to provide an illustration of these issues. Presents a tentative strategy for ensuring trustworthiness based on five criteria: completeness, interpretive adequacy,…

Science tends to find a solution to the problem of the unreliability of human perception by understanding objectivity as the absence of subjectivity. However, from a phenomenological point of view, subjectivity is not so much a problem as an inevitable starting-point. That does not mean that the problem of the correctness of people's accounts of…

Using the split-middle methods of trend estimation, evaluates the accuracy of interpretation of single subject data by comparing raters' visual analysis of behavior change with statistical determination of behavior change. Results indicate visual analysis accuracy was less than chance. Rater and student characteristics largely did not affect the…

Bias due to attrition of respondents poses a threat to the internal and external validity of research findings. Discusses methods of detecting attrition bias in longitudinal family research, and presents Heckman's procedure to correct attrition bias. Data from the University of California Longitudinal Study of Generations are used to illustrate…

When comparing the DACUM (Developing a Curriculum) and curriculum conference methods of curriculum development, one finds that the product goals of the two methods differ but the process goals are similar. Both seek to generate information from a select group on which to base curriculum development, but the end product of DACUM is a chart that…

This article discusses how interpretive research can challenge the special education field to think differently about what is already known and to factor in different ways of knowing and different meanings. Three dimensions of interpretive research are explored: "truth" value and accuracy, context and relations, and utility and relevance.…

Discusses family selection issues that should be considered in child care research, and evidence demonstrating why each should be considered. Issues include whether causal inferences can be made from observational studies and the impact on conclusions from regression analyses that include highly correlated measures of child care experiences,…

Huggins' report lacks serious data collection on college Black Studies Departments, omits the strongest ones, fails to record their history accurately, and does not assess the research achievements of its scholars. Huggins overlooks the importance of applying an Afro-centric perspective to phenomena related to people of African descent. (PS)

This paper responds to a 1992 study in which it was argued that the structure of intelligence in adults with severe mental retardation deviates from Greenspan's model, in which social and practical intelligence form separate factors. Application of confirmatory factor analysis to the original correlation matrix found the Greenspan model to be…

This paper discusses inconsistencies in Greenspan and McGrew's argument that confirmatory, rather than exploratory, factor analysis should be utilized in testing Greenspan's model of adaptive intelligence in adults with severe mental retardation. It is argued that problems with the data set should be addressed through further research rather than…

Synthesizes findings from 36 studies that validated the Dunn and Dunn Model of Learning-Style Preferences. Questions are raised regarding the validity of the model, the nature of the literature base, the interpretation of the meta-analytic findings, and the conclusions. The article concludes that the model has not been adequately validated.…

Presents the author's perspective on the topic of educational intervention for students with learning disabilities through a discussion of using validated, curriculum-based measurement as a determinant of effective instruction. Also examines the optimal characteristics and ethics of intervention research and the dissemination and implementation of…