Head Start is a national program that helps young children from families with low income get ready to succeed in school. It does this by working to promote their early learning and health and their families' well-being. The Head Start Family and Child Experiences Survey (FACES) provides national information about Head Start programs and…

Because of their efficiency and ability to keep many other factors constant, twin studies have a special appeal for investigators. Just as with any teaching dataset, a "matched-sets" dataset used to illustrate a statistical model should be compelling, still relevant, and valid. Indeed, such a "model dataset" should meet the…

TO STUDY THE EXACT DISTRIBUTIONAL DIFFERENCES BETWEEN SMALL, RELATED-SAMPLE PERCENTAGES AND THE ACCURACY OF LARGE-SAMPLE TESTS, SOME SIX HUNDRED SAMPLING DISTRIBUTIONS WERE CONSTRUCTED BY RANDOMIZATION. EXACT PROBABILITY FIGURES IN THE .204-.005 RANGE WERE TABULATED. THE TABLE OF SIGNIFICANCE VALUES EXTENDS TO SAMPLES YIELDING MATRICES VARYING IN…

The aim of this article is to review Cronbach and Gage's discussion of the artifacts in accuracy experiments, to suggest that they are not such serious obstacles as has been thought, to outline a method of studying the problem, and to present some data showing how the method works. (Author)

In this paper, tables for the appropriate sample sizes are presented and discussed in the context that the determination of the effect size must precede the determination of the sample size. (Author/PN)

Describes a study which analyzed problem solvers' error detection processes by instructing subjects to think aloud when solving statistical problems. Effects of evaluative episodes on error detection, detection of different error types, error detection processes per se, and relationship of error detection behavior to problem-solving proficiency…

Presents results of study undertaken at Census Bureau Library to determine which databases would be most productive and how they can be effectively searched to meet demands of bureau staff for literature on statistical research and methodology. Database selection in DIALOG Information Retrieval Service and journal coverage are noted. (EJS)

Describes a study conducted at the University of Southern Queensland (Australia) that investigated problem-solving behavior in statistics by documenting differences between successful and unsuccessful students. Two methodological approaches are described: one required students to identify key structural features of common problems, and the second…

Tests the effects of number of data points and type of statistical display on time spent answering questions about information. Finds that tables and graphs are more efficiently processed than text presentation of the same data. Suggests that the time variable is a more realistic measure than information recall of cognitive processing effort. (SR)

This report presents the findings of an initial survey that was designed to systematically determine the educational needs of citizens with regards to the emergency medical services system in their county. Specifically, the survey sampled the knowledge of respondents concerning: (1) what medical service is; (2) what services are available; (3) how…

This edition, the 24th report in a series begun in 1964, provides revisions of projections shown in the previous year's report. It includes statistics on elementary and secondary schools and institutions of higher education at the national level, projecting figures for enrollment, graduates, classroom teachers, and expenditures to the year 2005.…

Three adaptive models encompassing variations of instructional support, incentives, and context of presentations were developed and validated through eight separate studies which compared the teaching of statistics under computer-managed instruction or teacher-managed systems. Results indicate instructional support adaptations were effective, but…

Evaluates the use of computerized tutorial support for elementary statistics instruction in five education and social work courses, both graduate and undergraduate. Pretests and posttests used to measure student attitudes toward statistics and toward computers are described, and preferred learning environments before and after the course are…