The present study was addressed to the group AOV situation. Onte Carlo methods were employed to contrast several procedures with respect to a. ) control over Type 1 errors and b. ) power. (Editor)

A table of critical values is presented for use with Chacko's ordered alternatives test for the analysis of variance. (Author/JKS)

In numerous applications of the analysis of variance, it is necessary to compute the power of F tests having numerically high alpha (significance) levels. This article tabulates the power of F tests for a variety of degrees of freedom. (Author/JKS)

This book focuses on the relevance of statistics in the day-to-day lives of principals and teachers. The step-by-step guide to using existing school data can help school leaders make more appropriate and effective decisions. The information is presented with easy-to-follow instructions, illustrations, and pertinent examples. The chapters are: (1)…

Experimenters sometimes wish to estimate for a particular dependent variable the proportion of total group variance that is associated with mean differences among fixed treatments or subject classifications. Hays (1981) represents this proportion by the parameter omega squared. A point estimate may be easily computed as a function of the number of…

The contention of this paper is that the obtained difference in a study by DuCette and Wolk, which indicated that giving options in an essay examination produces poorer test performance, was an artifact of the scoring procedures. (Author/RK)

Procedure and program here described are designed to assess the reliability of J judges who are assigning N stimuli to one of K categories. (Authors)

Discussion of the use of computer-based information retrieval systems in schools focuses on three paper and pencil experiments conducted in the United Kingdom that were designed to investigate how 9- to 11-year-olds organized and retrieved information from four organizational structures: lists, hierarchies, networks, and tables. (18 references)…

EPPS scores from 167 high school seniors (Study 1, S1), 137 introductory psychology students (S2), and students from an innovative college program (S3) were compared using analysis of variance, image analysis, and factor pattern comparison. (Editor)

This study examined problem solving as a function of display type (table/graph) and numeric function (linear/nonlinear) in four problem solving domains. Twenty-two stimulus problems were developed, and line graph and table displays were constructed for each problem. Half of the displays contained linear numeric functions and the other half…

This study is an examination of the environmental forces and curriculum involvement in open and closed classroom settings. (Author)

Describes study of college students that was conducted to determine whether increasing the amount of data in different graphic formats affects the interpretation of quantitative information. Immediate and delayed recall are examined, and correlations between graphic format and field dependence and independence are discussed. (12 references) (LRW)

Nine-, eleven-, and thirteen-year-old children participated in a conformity situation requiring the judgment of the louder of two successively presented tones. (Editor)

In a part/whole free-recall paradigm, whole-list learning was examined as a function of the degree of part-list organization and the extent to which it was maintained. (Author)

Points out that 108 studies in the first 25 volumes of AV Communication Review used univariate analysis of variance to test experimental hypotheses, and suggests that researchers include omega-squared values in their reports to permit estimation of the relationship between x and y variables, and correlation data for comparing studies. (MER)