An analysis of variance procedure for testing differences in r-squared, the coefficient of determination, across independent samples is proposed and briefly discussed. The principal advantage of the procedure is to minimize Type I error for follow-up tests of pairwise differences. (Author/JKS)

Discussion of citation behavior as a function of research characteristics focuses on an analysis of citation patterns of political scientists in relation to variations in their research approaches. Hypothesis tested are given, citation measures are described, analytic procedures are explained, and further research needs are suggested. (40…

Develops a testing procedure based on a model including treatment effects on residual variances. (Author/RC)

The use of characteristic coding (dummy coding) is made in showing solutions to four multivariate problems using canonical analysis. The canonical variates can be themselves analyzed by the use of multiple linear regression. When the canonical variates are used as criteria in a multiple linear regression, the R2 values are equal to 0, where 0 is…

The relationship between analysis of variance (ANOVA) methods and their analogs (analysis of covariance and multiple analyses of variance and covariance--collectively referred to as OVA methods) and the more general analytic case is explored. A small heuristic data set is used, with a hypothetical sample of 20 subjects, randomly assigned to five…

The relative power of three possible experimental designs under the condition that data is to be analyzed by nonparametric techniques; the comparison of the power of each nonparametric technique to its parametric analogue; and the comparison of relative powers using nonparametric and parametric techniques are discussed. The three nonparametric…

Reviews study of 30 graduate students that investigated the possible contribution of pictures to the recall and retention of information presented in written prose. The two variables considered were the durability of picture effects, and the effect on recall of information that was not pictured. (LRW)

Describes study of 42 first and second graders which was conducted to determine whether older siblings could enhance their comprehension of television programs. The hypotheses tested are discussed, research methodology using analysis of variance is explained, videotapes of sibling interaction are analyzed, and future research needs are suggested.…

One of the important components of the elaboration theory (Reigeluth, 1979) is the synthesizer, which provides information to relate and integrate a set of concepts and which can appear in different formats. This study investigated the effectiveness of three formats of post-instruction synthesizer on student recall of definitions of concepts and…

Describes a study designed to determine if college students' success in writing computer programs is related to level of cognitive development as described by Piaget, verbal ability, and mathematics reasoning. Regression analysis showed that level of cognitive development, when combined with verbal reasoning, is linearly predictive of programming…

Discusses relation between verbal ability and metamemory and how these two factors relate to the later recallability of material. A study is described that separated 32 children into high and average verbal ability groups, administered a metamemorial questionnaire, and tested recall one week later. (Author/LRW)

Discussion of conditions under which simulation games promote changes in attitudes focuses on identification theory as a predictor of attitude change. Incentive theory and cognitive dissonance theory are discussed, and a study of community college students is described that tested the role of identification in changing attitudes. (LRW)

This paper reports the results of a Monte Carlo investigation of Type I errors in the single group repeated measures design where multiple measures are collected from each observational unit at each measurement occasion. The Type I error of three multivariate tests were examined. These were the doubly multivariate F test, the multivariate mixed…

Discussion of text segmenting and comprehension highlights a study of elementary students in Australia that tested two hypotheses, one concerning reading abilities and one concerning information processing skills involved in syntactic analysis. Tests that measured vocabulary, comprehension, and processing skills are described, results are…