At the request of a Senate subcommittee, this report describes the value of conducting impact evaluations, describes their current use in evaluating selected early childhood education and care programs, and discusses the value of other types of early childhood education and care studies currently promoted and sponsored by the Departments of Health…

Because activity in the classroom is the primary focus of educational research, and because teachers are critical about the dissemination and implementation of research products, developers must take into account the growth and development of instructional personnel. Educational development is a multidimensional, transactional phenomenon and must…

Presents both logical and empirical evidence to illustrate that the conventional scoring algorithm for ranking tasks significantly underestimates the initial level of group ability and that Slevin's alternative scoring algorithm significantly overestimates the initial level of ability. Presents a modification of Slevin's algorithm which authors…

Two opposite views of the relations between moral cognition and moral action are described, their contrasting assumptions and implications are clarified, and the available empirical literature is reviewed. Research relating moral reasoning to real-life moral behaviors is summarized, with special attention given to design, measurement, and…

The biasing effects of a pretest on subsequent post-test results were investigated in two experimental studies. In general, the results argue for using designs without pretests. (Author/JKS)

The use of the expert-novice technique in science education is examined critically. Discussed are four techniques including their methodological limitations. Improvements and alternatives in experimental design are suggested. (Author/CW)

Reports on a review of empirical research reports submitted over the past several years to the "American Journal of Distance Education" that identified common analytic problems and errors often overlooked by distance education researchers. Topics discussed include significance testing; assessment issues, including reliability and…

This paper explores the reasonableness of expecting conventional experimental methodologies and research reports on behavioral interventions for persons with developmental disabilities to both support the validity of promising practices and guide the efforts of practitioners to implement those practices. New directions for research and practice…

This paper examines studies of the Minnesota Institute which were interpreted as demonstrating that students with learning disabilities are not distinguishable from other low-achieving students. Results of the reexamination indicate that learning disabilities and low achievement can be clearly differentiated, even in studies indicating that little…

Seven qualitative issues associated with randomization that have the potential to weaken or destroy otherwise sound experimental designs are reviewed and illustrated via actual field experiments. Issue areas include ethics and legality, liability risks, manipulation of randomized outcomes, hidden bias, design intrusiveness, case flow, and…

Argues that the prevailing computer science orientation to data visualizations is severely limited for addressing usability concerns associated with supporting users in three critical problem areas: sophisticated visual literacy, complex data analysis, and new paradigms of visual inquiry. Argues that current object-oriented usability…

Aserts that it is unclear how the Ages and Stages Questionnaires: Social-Emotional ratings link to other critical child and family risk factors. Identifies questions regarding how well individual dimensions of social behavior are measured and concerns about the partial overlap between competent and problem behavior. Expresses concerns about the…

Higher education scholars and institutional researchers rely heavily on self-reported survey data in their work. This chapter explores problems associated with self-reports and provides questions and recommendations for their use.

In response to Dinkmeyer, McKay, and Dinkmeyer Jr.'s (1990) claim that individuals were incorrectly reporting Systematic Training for Effective Parenting (STEP) as being ineffective and recent claims of STEP being ineffective (e.g., Taylor & Biglan, 1998), the purpose of this article was to review the research and statements made about STEP's…

The What Works Clearinghouse (WWC) provides online reports to the public about the scientific evidence for educational interventions. The quality of these reports is important because they effectively tell the non-scientific community which programmes do and do not work. The aim of this brief review is to assess WWC's report on a clinically…