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)

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)…

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)

Levin's (1975) sample-size determination procedure for completely randomized analysis of variance designs is extended to designs in which antecedent or blocking variables information is considered. In particular, a researcher's choice of designs is framed in terms of determining the respective sample sizes necessary to detect specified contrasts…

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)

Many researchers assume that unequal cell frequencies in analysis of variance (ANOVA) designs result from poor planning. However, there are several valid reasons why one might have to analyze an unequal-n data matrix. The present study reviewed four categories of methods for treating unequal-n matrices by ANOVA: (a) unaltered data (least-squares…

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

The results of an investigation into some special cases of the general "orthomax" formulation are presented. In particular, the effects of manipulating a parameter in this formulation on various aspects of factor solutions are identified through the use of four sets of data, varying considerably in size, and reliability and factorial complexity of…

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)

The language skills category of objectives of the Appalachia Preschool Education Program as measured by the Illinois Test of Psycholinguistic Abilities (ITPA), is discussed. The point is made that one of the difficulties associated with evaluating language development is the loose fit between available theoretical and operational definitions of…

The purpose of this study was to clarify some of the dynamics of test anxiety in the foreign-language classroom: to evaluate the effect of different test instructions (calculated to arouse or reduce test anxiety) on the test performance of foreign language pupils. (Author)

This study examined the effects on the long-term retention of incidental and relevant material of prequestions of high and low arousal potential. (Editor)