To determine how many occurrences of a syntactic structure are necessary to provide sampling reliability, two one-half hour spontaneous language samples were elicited from each of 15 language disordered students (5 to 6 years old). Sessions were divided into two periods, one for the child's telling about pictures and toys and the other for…

A special sampling procedure for collecting health statistics and related information from a representative sample of migrant farmworkers was developed for the New York Migrant Health Interview Survey conducted in Wayne County during the summer of 1982. A three-stage, stratified random sampling technique was used. The primary sampling units were…

The reconstructive approach deals with problem solving in the social studies and particularly with the formulation of policy questions which would be examined with respect to their desireability and feasibility. In this article the author rebuts criticism of his handbook outlining the reconstructivist model for inquiry. (JH)

The present study was addressed to the group AOV situation. Onte Carlo methods were employed to contrast several procedures with respect to a. ) control over Type 1 errors and b. ) power. (Editor)

This study investigated differences between WISC Full Scale IQs obtained on mentally retarded adolescents during their fifteenth year of age and WAIS Full Scale IQs obtained after their sixteenth birthday using both the eleven subtest WAIS and several abbreviated forms of the WAIS. (Editor)

25 nine year old children from the Outer Islands of Orkney were compared with a matched group of 25 children from Kirkwall in order to find out whether any differences existed in the development of geographical and spatial concepts as well as country and nationality. (Editor/RK)

The purpose of this study was to help determine optimum item sampling plans for use in school evaluation projects. (Author)

The problem of demonstrating replicability of factor structure across random variables is addressed. Procedures are outlined which combine the use of random subsample replication strategies with the correlations between factor score estimates across replicate pairs to generate a coefficient of replicability and confidence intervals associated with…

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…

In 1966, the Research Department of the California Teachers Association sent a questionnaire to a stratified random sample of California teachers. Of 2,400 questionnaires distributed, there were 2,061 (85.9 percent) usable returns. The questionnaire asked about the professional status of the teacher and his professional judgments regarding teacher…

Standard errors of pooled mean estimate in multiple matrix sampling were compared for two procedures. The data were from tests involving items with and without replacement. The two procedures involve the formulations of Madow and Lord, and Novick; the former permits sampling of item, with or without replacement, whereas the latter is to be used…

Researchers often use the analysis of variance to test hypotheses about the means, followed by a multiple comparison technique when the F-test is significant. The technique is this study was developed by Newman (1939) and Keuls (1952). A flaw in the rationale underlying this technique was evaluated to determine whether the flaw is sufficiently…

The experience of the American Council on Education's Cooperative Institutional Research Program indicates that large-scale national surveys in the domain of higher education can be performed with scientific integrity within the constraints of costs, logistics, and technical resources. The purposes of this report are to provide complete and…