Although popular literature cites between 25,000 and 100,000 parental child snatchings a year, no empirical studies have been conducted to support this estimate. To determine an empirical estimate of the extent of parental child snatchings, telephone interviews were conducted by Louis Harris and Associates with a representative cross section of…

Described herein are formulas and computational procedures for estimating the mean and second through fourth central moments of universe scores through multiple matrix sampling. Additionally, procedures are given for approximating the standard error associated with each estimate. All procedures are applicable when items are scored either…

Examines the question of how large a sample must be in order to produce empirical Bayes estimates which are preferable to other commonly used estimates, such as proportion correct observed score. (Author/RC)

Author considered the proper use of the LSD-type drugs, variously called hallucinogenic, mind-altering, mind-revealing, or psychedelic, and sampled the views of responsible researchers on the use of these drugs for mental health and for the study of the human mind and development. (Author/RK)

This research represents an attempt to look closely at the actions which children are expexcted to perform in the early stages of reading and writing when taught by systematic methods, containing a phonic ingredient. (Author)

This paper presents the finding of an investigation for determining course achievement utilizing the statistical technique of path analysis. (Author)

Participants in the D-19 symposium on aquatic sampling and measurement for water pollution assessment were informed that determining the extent of waste water stream pollution is not a cut and dry procedure. Topics discussed include field sampling, representative sampling from storm sewers, suggested sampler features and application of improved…

A procedure for testing heterogeneity of variance is developed which generalizes readily to complex, multi-factor experimental designs. Monte Carlo studies indicate that the Z-variance test statistic presented here yields results equivalent to other familiar tests for heterogeneity of variance in simple one-way designs where comparisons are…

Designs for sequential sampling procedures that adapt to cumulative information are discussed. A familiar illustration is the play-the-winner rule in which there are two treatments; after a random start, the same treatment is continued as long as each successive subject registers a success. When a failure occurs, the other treatment is used until…

Two investigations examined whether incentives increase the number of survey returns from former students and whether ideographic characteristics, incentives, and multiple mail-outs influence the perceptions of respondents. Survey responses of 125 (Study 1) and 67 (Study 2) baccalaureate graduates in education were used. The survey included 43…

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)