A normally distributed data set of 1,000 values--ranging from 50 to 150, with a mean of 50 and a standard deviation of 20--was created in order to evaluate the bootstrap method of repeated random sampling. Nine bootstrap samples of N=10 and nine more bootstrap samples of N=25 were randomly selected. One thousand random samples were selected from…

Both criterion-referenced testing and behavioral assessment share the basic assumption that test behavior is a sample rather than a sign. In addition, both types of assessment focus on response capabilities and performance in specified content domains. Although content validity has been traditionally recognized as essential to criterion-referenced…

One of a series of reports on the International Project for the Evaluation of Educational Achievement (in Mathematics).

To explore androcentric bias in the "Educational Administration Quarterly" (EAQ), researchers performed a content analysis of 90 articles from ten volumes of the EAQ (1970-1979). An initial demographic analysis of the articles looked at the author's gender, article focus, and use of sexist language. The researchers then examined five…

A sample of 974 school districts was surveyed by mail to determine the current and projected use of computers in United States public secondary/elementary schools, with special reference to computer assisted learning. Returned questionnaires provided a 62.3 percent response rate, and were balanced both geographically and by urban/rural…

Beginning with the planning stages of the National Assessment of Educational Progress (NAEP), careful attention has been given to the design of efficient probability sampling methods for the selection of class-age respondents and the assignment of test packages. With these methods, it is possible for NAEP researchers to make relatively precise…

This study examined the effects of certain item selection methods on the classification accuracy and classification consistency of criterion-referenced instruments. Three item response data sets, representing varying situations of instructional effectiveness, were simulated. Five methods of item selection were then applied to each data set for the…

The reliability and validity of measurement is analyzed by a sampling model based on generalizability theory. A model for the relationship between a measurement procedure and an attribute is developed from an analysis of how measurements are used and interpreted in science. The model provides a basis for analyzing the concept of an error of…

This module on statistics consists of 18 worksheets that cover such topics as sample spaces, mean, median, mode, taking samples, posting results, analyzing data, and graphing. The last four worksheets require the students to work with samples and use these to compare people's responses. A computer dating service is one result of this work.…

The scoring scheme of the National Assessment of Educational Progress (NAEP) is studied, as well as techniques for estimating its reliability. NAEP data are collected on students of age 13 in the fall, age 9 in the winter, and age 17 in the spring. The scoring task, involving hand scoring of open-ended items, may vary between 25,000 responses to…

This guide presents a classroom problem solving model designed to help teachers conduct their own classroom research. It suggests developing a procedure for identifying the instructional problems influencing reading achievement. The model is presented in steps that can be used independently or in concert with other steps. Practice activities are…

The development of content analysis instruments sensitive to the instructional, social, and value-laden content of a television series, was necessary because of formative evaluation needs to establish the congruity of the actual program content with the intended content and to assess the hidden curriculum. Because issues ranged widely, four…

Intended as a reference for the convenience of students in sampling, this monograph attempts to express relevant, introductory mathematics and probability in the context of sample surveys. Although some proofs are presented, the emphasis is more on exposition of mathematical language and concepts than on the mathematics per se and rigorous proofs.…

This report is intended to provide government managers with some perspective on the nature and implications of sample surveys, their likely costs, and what can be expected from them. The authors discuss sample surveys less from the technical side than from the perspective of the officials who will make management decisions about an overall survey.…