Recent developments in dichotomous factor analysis based on multidimensional item response models (Bock and Aitkin, 1981; Muthen, 1978) provide an effective method for exploring the dimensionality of questionnaire items. Implemented in the TESTFACT program, this "full information" item factor analysis accounts not only for the pairwise…

This final study in a series reports the investigation in detail of the sex-related differences in the mathematics achievement of sixth grade students. Students were stratified in four intelligence levels with 91.5, 101.5, and 111.5 IQ as cutpoints. Twenty computation scores and eight contemporary mathematics scores were derived from the…

The psychometric research done by G. Rasch between 1951 and 1959, which is explained and illustrated in this book, takes psychometrics from being purely descriptive to being a science of objective measurement. Individual centered statistics require models in which each individual is characterized separately and from which, given adequate data,…

For generations, moral development has been both a conscious aim and a formal process in Japanese education. This book investigates the history and development of Japanese moral education and analyzes and compares current moral education with the concepts of the Imperial Rescript on Education (1890) and the "shushin" moral education of…

Tests theoretical perspectives about the effects of employment during high school. Supports a zero-sum model which suggests that working during high school subverts traditional academic goals. Finds no support for the developmental model which claims that employment during school builds character. Acknowledges that working to save money for…

To facilitate the proper technical use of the test scores obtained from the administration of the tests, the curricular and psychometric characteristics of the tests are described in a series of technical manuals. This manual, the seventh in the series, contains a description of the characteristics of the North Carolina Test of Chemistry. The test…

This publication discusses the use of intensive teaching methods for language instruction, also known as suggestopedia ("suggestopaedy"). The theory of suggestopedia, various methods developed from the theory, and their applications are described. A description of Lozanov's suggestopedic method precedes a discussion about the various…

This report summarizes the findings of the analyses of data on course offerings in the public secondary schools of the United States. The study on academic trends during the 1972-73 and 1981-82 school years focused on courses in computer application, foreign languages, mathematics, social sciences, visual and performing arts, and vocational…

This study examined the development of the rational number concept as a ratio. Preliminary to the description of the study is an introduction discussing constructivism and equilibration. The study itself tests whether equilibration theory holds, and if so, what is the nature of its "phases" and whether these are found at each of the "periods" of…

Under a mastery learning system students can take successive parallel tests with study interspersed between tests until they demonstrate a minimal level of competency. For most students, such procedures increase final performance, yet some may experience repeated subjective failure. Self-worth theory predicts that repeated failure in the face of…

This study investigates the amount of uncertainty added to National Assessment of Educational Progress (NAEP) estimates by equating error under both ideal and less than ideal circumstances. Data from past administrations are used to guide simulations of various equating designs and error due to equating is estimated empirically. The design…

The prediction that differences in incomes of high school and college graduates will not change is tested by applying standard statistical procedures to data describing actual income differences. Data from the United States Bureau of the Census describe annual incomes of men twenty-five years old and older during 1956-75. Report 1 displays results…

ANOVA and Profile analysis were employed to compare the computational skills of high and low ability sixth graders during a decade of efforts to individualize instruction. Comparison of lowest ability subgroups demonstrated no differences with statistical significance in their computational skills. There were statistically significant differences…

This book shows the advantages of Rasch measurement (G. Rasch) for school district testing programs. The results of Rasch methods are contrasted with conventional statistics for assessing student responses to basic skills testing. Chapter 1 shows how the Rasch probability-based method produces measures that are more useful for students, parents,…

This report, the forth in a series from the spring 1998 national survey, "Teaching, Learning, and Computing," examines teachers' survey responses that describe the frequency with which their teaching practice involves those five types of activities and the frequency with which their practice involves more traditional transmission and…