A solution is proposed for analysis of variance procedures with missing cells, such as may occur when a control group is not assigned to any of the rows or columns of the various experimental groups. Mathematical models for two-way design are presented which define several variables; as well as row effect, column effect, and row and column…

THE PURPOSE OF THIS STUDY WAS TO COMPARE TWO TEACHING METHODS FOR DEVELOPING PRODUCTION TYPEWRITING ABILITY. THE TRADITIONAL, SPEED-EMPHASIS METHOD AND THE EXPERIMENTAL, PRODUCTION-EMPHASIS METHOD, WERE USED DURING 50-MINUTE PERIODS FOR 61 SESSIONS EACH SEMESTER WITH STUDENTS ENROLLED IN INTERMEDIATE TYPEWRITING AT INDIANA UNIVERSITY DURING…

A meta-analysis of 29 separate studies investigating pretest effects was conducted. Outcomes of the studies (achievement gains or attitude improvements) were computed as standardized differences between pretested and non-pretested groups. Eleven other variables were coded for each outcome. Initial descriptive statistics were indicative of…

Group structure is one of the important mediators between individual input and group output. The present study examines the effect of group structure on the following dependent variables: (1) change in the group member's evaluation of items evaluated before group interaction, (2) change in his subjective evaluation model as a consequence of group…

A riveting operation was presented to 90 Grade 7 industrial arts students through the use of a slide-tape program to compare the amount of transfer from three learning tasks to a transfer task and to ascertain the effect of different amounts of practice on transfer. The students were randomly selected and alternately placed into nine groups. The…

This study was undertaken to compare the effectiveness of two basic approaches to the training of auditory discrimination and to assess the effect of training upon language functioning and acquisition. Subjects were 42 culturally deprived Negro preschoolers. A receptive training group, an expressive training group, and a control group were used.…

A program was devised and presented to four classes of college freshmen who demonstrated a need for remedial English instruction. An experiment to ascertain relative merit of programmed and conventional classroom presentation was conducted. The program was divided into phonetic spelling, basic word usage, effective sentence construction, and basic…

This study attempts to determine whether families with a son rated by his teacher as either "high" or "low" on classroom adjustment (behavior indicative of social maturity and achievement motivation) could be differentiated on the basis of their communicative patterns. It was questioned if significant differences existed in the amount of positive…

This is one of a series of eight short monographs intended to aid practicing educators in planning and conducting accountability programs in schools. This booklet discusses how to develop an experimental design appropriate to the objectives of a particular research or evaluation effort. Short sections focus in turn on the characteristics of a good…

Univariate and multivariate assessment of general achievement/aptitude indicated general achievement/aptitude is significantly delineated: by race and GPA for the population, nonexperimental freshmen, and experimental and/or control freshmen; by financial aid and attrition/persistence for the population and nonexperimental freshmen; and by…

Investigating the effect of sentence-combining practice on the syntactic maturity of written compositions and on reading comprehension, this study involved assignment of seventh grade students to control and experimental groups. Analysis was based on the experimental group's completion of 26 sentence-combining problems (O'Hare's format with some…

The purpose of this study was to examine teachers' effect on elementary school students' self-concept when taught by an experimental group of teachers that was less dogmatic than the other group of teachers. Results indicated self-concept was significantly higher among students taught by the experimental group of teachers. (JC)

Investigating the attitudinal effects of a college course on a class of senior education majors, this study involved an experimental group which attended the regular class supplemented by a field centered experience and a control group which only engaged in the regular class. (JC)

This experimental, statistical study investigated the effects that the testing of grammar and writing mechanics would have on the overall quality and reduction of errors in college students' essays for freshman composition. In the experimental group of 42 students, the professor assigned several exercises in grammar and mechanics as a review…

The purpose of this study is to develop a model showing the relationship of academic, socioeconomic, and motivational variables to students' attrition in a community college nursing program, in order to determine the students who pass, or not pass, first semester, generic, and associate degree nursing courses. The theoretical framework used in the…