Evaluation Research Society members (n=160) assessed the attributes of research that produce credibility. The study focused on the acceptability of no-difference findings. Randomization, statistical power, number of measures reported, and equivalent groups were tested to determine their influence on acceptability of both no-difference and…

The present study points out problems in the model, indices of familiality, and design used by Benbow, Zonderman, and Stanley in a study of precocious children and their parents. (Author/LMO)

Meta-analysis of research on a topic may exclude reports that do not present their results in a statistical form amendable to summarizing procedures used. This article illustrates how researchers can consider this aspect in computing statistics from their data. An illustration of how that can sometimes be done is presented. (Author/JAZ)

The author examined the prevalence of multiple operational definitions of outcome constructs and an estimate of the incidence of Type I error rates when univariate procedures were applied to multiple variables in educational psychology. Multiple operational definitions of constructs were advocated and wider use of multivariate analysis was…

Twenty-nine steps necessary for data file preparation for secondary analysis are discussed. Data base characteristics and planned use vary the complexity of the preparation. Required techniques (file verification, sample verification, file merger, data aggregation, file modification, and variable controls) and seven associated pitfalls are defined…

Gleser and Lubin put forth a series of objections to Kalter, Marsden and Ericson's 1974 article on methods of controlling for response productivity. The latter contend that the Gleser and Lubin objections were either not to the point or biased on lack of attention and misunderstanding. (NG)

In a recent report, Lewis Solmon, Kern Paark, and David Garcia (2001) seek to identify the impact of attending charter schools on student achievement using data from Arizona. Based on a sophisticated statistical analysis, these authors report that charter school attendance increases test score gains of students. This note raises some questions…

Discusses three weaknesses in reporting research findings by commenting and criticizing research articles published in the eighth volume of Journal of Research in Science Teaching. (CC)

An element of genuine creativity has been absent too often in research on creative ability." A more consistent use of neutral labels for divergent thinking and related processes might lead to research that is freer of preconceptions. (DM)

Julian Simon and Herman Kahn argue that population growth is good, not bad; they ignore or dismiss critical environmental issues. Fallacies in their arguments about predicting the future from the past, climate change, population growth, air quality, resource expansion, the finite earth, and technological growth are examined. (SR)

Critically examines the portions of Arthur Jensen's books that concern Barbara Burks' 1928 study of adoptive families. Findings are that Burks' sample was highly selective, that her environmental measures were limited, and that Jensen has misrepresented the content and implications of her study. It is also shown that Jensen's estimates of…

Employs a pragmatic philosophical perspective to argue that there is no incompatibility at either the level of practice or that of epistemology between qualitative and quantitative methods of educational research. (FMW)

Demonstrates the extent to which school-level performance in the British General Certificate of Secondary Education (GCSE) program is underpinned by variations in the socioeconomic backgrounds of students. Concludes that uncontextualized performance statistics are flawed, and that policies for school improvement must address underlying constraints…

In a nonrandomized or observational study, propensity scores may be used to balance observed covariates and trajectory groups may be used to control baseline or pretreatment measures of outcome. The trajectory groups also aid in characterizing classes of subjects for whom no good matches are available and to define substantively interesting groups…

Uses of quantitative research for studying the relationship between school leadership and educational reform are discussed in this paper. Perceived inadequacies of quantitative methods are that such methods are inadequate for dealing with real-life complex phenomena, and that they require degrees of control that cannot be realistically achieved.…