The research literature provides important guidance to counselors working to keep abreast of the latest thinking regarding best practices and recently developed counseling tools. The purpose of this digest is to highlight a few errors that seem to recur within the literature, and to provide some helpful references that further explore these…

This digest describes some of the basic logic-of-evaluation skills and some of the basic methodological skills that need to be mastered in order to practice the art and science of evaluation. Some topics from the logic of evaluation that must be dealt with include understanding : (1) the differences and connections between evaluation and other…

Fred N. Kerlinger has been hailed as having contributed to the transformation of the way that behavioral scientists and educators read research reports, design and execute research, and draw conclusions about research. In 1960 he introduced the notion that educational research is fraught with mythology. Three of the research myths that he…

Abuses and misuses of statistics are frequent. This digest attempts to warn against these in three broad classes of pitfalls: sources of bias, errors of methodology, and misinterpretation of results. Sources of bias are conditions or circumstances that affect the external validity of statistical results. In order for a researcher to make…

Too few researchers understand what statistical significance testing does and does not do, and consequently their results are misinterpreted. This Digest explains the concept of statistical significance testing and discusses the meaning of probabilities, the concept of statistical significance, arguments against significance testing,…

Most practitioners and researchers support the educational policy direction of increased parent involvement, but few agree about what constitutes effective involvement. This digest, based on a critical evaluation of over 200 research studies, briefly reviews findings from parent involvement research to date, discusses their validity and utility,…

This digest reviews scientific and methodological problems in special education research related to race, ethnicity, and socioeconomic status. The first section of the digest discusses the various definitions of race, ethnicity, culture, and socioeconomic status. The problems with current race classification and the difficulties in determining the…

The work of the National Research Center on Student Learning (CSL) is described. The CSL, one of 23 national centers funded by the Office of Educational Research and Improvement, is an integral part of the Learning Research and Development Center of the University of Pittsburgh (Pennsylvania). The CSL conducts interdisciplinary research that…