Combining information to estimate standardized partial regression coefficients in a linear model is discussed. A combined estimate obtained from the pooled correlation matrix is proposed, and its large sample distribution is obtained. The method is generalized to handle a random effects model in which correlation parameters vary across studies.…

This article explains and illustrates the estimation of the power of statistical tests used to analyze data in early childhood special education research, and discusses advantages and disadvantages of various ways to increase power, such as using a directional alternate hypothesis or using a parametric, rather than nonparametric, statistical test.…

Describes a study designed to evaluate the performance of an experimental semiautomatic map cataloging advisor, Mapper, in the descriptive cataloging of single-sheet maps from U.S. publishers. Hypotheses tested are discussed, treatment of experimental and control groups is described, and it is reported that Mapper helped produce better cataloging…

The hypothesis that attentional demands of word recognition covary with other measures of reading efficiency was tested with 27 undergraduates performing naming and probe-detection tasks singly and in combination. Findings support the assumption that attentional demands of basic reading are a source of differences in reading skill. (SLD)

This third in a series of articles on the effectiveness of educational technologies in higher education institutions focuses on a study of universities in Ohio that investigated faculty perceptions of the quality and importance of educational technology services. Results indicate faculty viewed quality to be inferior to importance. (39 references)…

Discusses the importance of historical studies for librarians and how knowledge of the past contributes to the research base. Social science and historical perspectives on library research are considered; and hypothesis testing, the study of causality, and the history of information practices are examined. (Contains eight references.) (LRW)

Multivariate permutation tests are described, and some are suggested as substitutions for Hotelling's one-sample T2 test in common situations in behavioral science research. A Monte Carlo study shows advantages of these tests when the T2 test fails or is suspect. (SLD)

Demonstrated is the use of BASIC computer programs to simulate a binomial experiment and test a simple statistical hypothesis. The theoretical results are reached with the third programing attempt. All results, as well as computer programs, are included. (JJK)

A method is outlined for analysis of the shape of an individual profile of scores on a standardized test battery. The method uses a simultaneous test procedure allowing for an overall test of profile flatness, with follow-up tests on all contrasts of interest. (SLD)

Describes research that was conducted to determine and then compare which Anglo American Cataloging 2 (AACR2) rules were used to assign access points for random samples of monographs in chemistry and in economics. Implications for automatic cataloging using expert systems are explored, and suggestions for further studies are given. (10 references)…

Conceptualizes the process of conducting integrative research reviews as a data-gathering, empirically based procedure and offers guidelines for conducting such reviews. Introduces specific suggestions that were heretofore unaddressed. Maintains that efforts to standardize integrative review process and to ensure its scientific rigor in counselor…

The disparity between methodology and empirical research literature is examined to suggest a cause for the casual acceptance of null hypotheses simply because obtained differences are not statistically significant. Analysis of training for psychological researchers suggests that programs have not emphasized the comprehensive evaluation of all…

Relates activities implemented in a high school genetics course that enable students to experience "science in the making" (Latour, 1987). Students work in research groups, build explanatory models of observed natural phenomena, present models at class conferences, revise models based on peer feedback or new observational information, and win…

This study of second- and third-grade students in the Netherlands tests the hypothesis that simplification of the semantic structure will facilitate semantic understanding and acquisition of syntax knowledge within the LOGO Turtle World. Two microworlds were designed applying the theory of automata and abstract languages. (Author/LRW)

Describes an experiment that evaluated features of TEXNET abstracting software, compared the use of keywords and phrases that were automatically extracted, tested hypotheses about relations between abstractors' backgrounds and their reactions to abstracting assistance software, and obtained ideas for further features to be developed in TEXNET.…