Educational researchers and policymakers need to understand the ecological correlation fallacy, since so much bad research (and policy) has been based on it. Aggregate data may or may not yield results that are true for individuals. Only individual-level data can correctly answer questions about the relationship between variables for individuals.…

Conclusive research has shown the benefits of small class size (1:15), especially for primary grades. Large-scale projects in Indiana and Tennessee and numerous smaller studies found that youngsters in small classes obtain higher test scores, participate more eagerly, demonstrate improved behavior, and retain these benefits in later schooling…

Asserts that this book, drawn from a 1993 conference on memory development, accurately reflects the contemporary status of the field in two ways: (1) its research is matured and specialized; and (2) there are no major theoretical disputes, nor a widely shared new approach, although using microgenetic designs to study cognitive strategy choice…

Traces through Thomas Greenfield's work his use of Max Weber's interpretive social analysis, including Weber's view of the individual unit of analysis, value topologies, comparative history methods, and analytical ideal topologies. Compares Greenfield's and Weber's metaphysical assumptions, ontological perspectives, and epistemological frameworks.…

Results from numerous school- and teacher-effectiveness studies suggest that variation between classes is more significant than variation between schools, though evidence often seems contradictory. This article considers why different studies generate different findings, identifies key study design issues, and relates these observations to…

Provides three responses regarding an article, "Choosing Our Futures": (1) disagrees with how much and how fast change in academic libraries should be made, arguing that reorientation not revolution is needed; (2) sees it as a foundation for dialog and action; and (3) notes the article's lack of supporting research, questions its vague…

Proposes an approach to defining units of analysis for Internet communication research. Defines the term "Internet computer-mediated communication." Uses this definition as the basis for developing a set of definitions (media space, media class, media object, and media instance) as units of analysis. Illustrates these units with some examples. (SR)

This article reviews and critiques the research on possible genetic factors in stuttering. The failure to consider epidemiologic factors is thought to have biased previous research, but recent data provide evidence that spontaneous recovery and chronicity are influenced by genetic factors. Findings support previous conclusions about combined…

Views intercoder reliability as a sampling problem for content analyses. Develops a formula for generating sample sizes needed to have valid reliability estimates. Suggests steps for reporting reliability. (TB)

Argues that the key distinction of a situated approach to studying intelligent behavior is not the method used but the focus of the investigation, specifically the unit of analysis. Discusses contemporary approaches to assessment, collaborative problem solving as an assessment context, situated assessment, intentional dynamics, and interaction as…

Notes two faulty aspects of the Reznick et al., twin study (PS 526 688): the expressive language measure at 14 months, which has practically no spread of item difficulty, as well as measures included to assess specific cognitive characteristics; and the notion of infant transition as it affects interpretation of the results. (HTH)

In response to a paper on risk and resilience models in learning disabilities research, this article suggests two factors that render this framework appealing to special education researchers: its optimistic empowering nature as the trainability of identified resilience factors is assumed and its emphasis on factors external to the individual that…

This article examines methodological issues confronting the study of qualitative and quantitative differences in ways that separated parents share time with their children. Measurement issues explored include disentangling dimensions of contact, identifying economic implications of contact, and measuring quality of contact. Sampling issues relate…

Reviews the problems associated with recruiting older minorities into mental health research studies and proposes a consumer-centered model of research methodology that addresses the barriers to recruitment and retention in this population. Results reveal that although the consumer-centered methods result in better recruitment of older minorities…

Notes that preceding commentaries raise several issues, including which variables need to be controlled to demonstrate a specific relationship between phoneme-level skills and reading ability and whether prereaders can perform phonemic awareness tasks. Maintains that none of the commentaries casts doubt on the basic conclusion that phonemic-level…