This article presents a method to evaluate pretest effects on posttest scores in the absence of an un-pretested control group using published results of pretesting effects due to Willson and Putnam. Confidence intervals around the expected theoretical gain due to pretesting are computed, and observed gains or differential gains are compared with…

An analysis of various studies which have examined the effect of questions in the textual content of instructional materials. (JB)

To evaluate changes of attitude by vocational educators during a summer workshop in educational research, statistical data was obtained from a sample of four school administrators and 12 vocational education teachers who attended the workshop. Chi-square analysis and a Z test were utilized in evaluating attitude changes based on a pre- and a…

The measurement of change in quasi-experimental educational research was discussed. Problems related to measuring change exist to varying degrees in all research designs; these issues are less troublesome in experimental studies because the investigator can manipulate the interest variables and observe their effects on other variables. Measuring…

The evaluation design, which prescribes when and from whom to gather data, is described as significant because it can lend credibility to evaluation results. The objectives of this booklet are to aid the evaluator in: choosing a design; putting it into operation; and analyzing and reporting the data. Examples include both formative and summative…

An overall analysis is made of the impact of Grade 3 Title I reading programs in the State of Michigan. An attempt is made to estimate the effectiveness of particular reading programs for low-scoring, middle-scoring, and high-scoring pupils for the purpose of identifying exemplary programs. In addition, a rank ordering of the various programs…

The World of Manufacturing is an Industrial Arts Curriculum Project designed to acquaint junior high school students with all the major phases of the manufacturing industry. This publication reports the evaluation of a World of Manufacturing program implemented into the Pontiac School District during the 1970-1971 school year. During the summer of…

The major purposes of this study were to develop a process for the application of a "judgemental procedure" to program construction in vocational and practical arts education, and to apply the process in a selected local community. The "judgemental procedure" was that proposed by W.O. Stanley in 1953. After applying seven…

Recent research results strongly suggest that the theoretical problems of change measures have limited practical significance for measuring individual growth, and it is important to determine whether this is also the case for measuring school impact. Accordingly, in this study artifical data were used to assess the correlation between several…

A computer simulation procedure was developed to reproduce the overall pattern of results obtained in the Educational Testing Service Growth Study. Then simulated data for seven sets of 10,000 to 15,000 cases were analyzed, and findings compared on the basis of correlations between estimated and true growth scores. Findings showed that growth was…

The four goals of this project are outlined in some detail. First, a unit programed for self-instruction in nursing, entitled "An Introduction to Radiation Therapy" was revised and rewritten on the basis of knowledge gained from controlled use. The revised unit took less time, showed a decreased error rate and indicated greater learning. A second…

To compare the effectiveness of individualized and lecture-discussion methods with a non-instruction (Control) method in developing turfgrass competencies in 11th and 12th grade students as measured by achievement in a battery of tests, teachers from 29 Michigan schools were randomly placed in three groups and attended workshops where they were…

An evaluation of the first year of "The Electric Company" is provided. Volume 1 is comprised of the following chapters: I. Introduction; II. Preparing for the Evaluation (Research Design and Sampling Procedures; Field Operations; The Treatment--the in-school viewing treatment, the at-home viewing treatment, and the content of The…