A Monte Carlo study compared the usefulness of six variable weighting methods for cluster analysis. Data were 100 bivariate observations from 2 subgroups, generated according to a finite normal mixture model. Subgroup size, within-group correlation, within-group variance, and distance between subgroup centroids were manipulated. Of the clustering…

When survey data are statistically analyzed, many times some of the data is missing. If the missing values are not correctly handled, results of the analysis may be dubious and publication may jeopardize the credibility of the organization preparing the report. This study examined four of the more commonly used methods of handling missing data.…

Two strategies, derived from J. P. Schaffer (1986), were compared as tests of significance for a complete set of planned orthogonal contrasts. The procedures both maintain an experimentwise error rate at or below alpha, but differ in the manner in which they test the contrast with the largest observed difference. One approach proceeds directly to…

A study examined the effectiveness of semantic mapping instruction as a technique for increasing vocabulary. Subjects, 38 fourth grade students in two classrooms, were divided into experimental and control groups. Both groups were pretested for their knowledge of selected words taken from the Scott, Foresman Reading Program, Grade Four. The…

In the comparative hearing, the mechanism traditionally used by the Federal Communications Commission (FCC) to choose the best applicant for a broadcast license or frequency allocation, the virtues of each candidate are compared using several criteria, such as integration of ownership and management, but weight has never been fixed to the…

Three instructional methods of club sequence for introducing golf skills to beginning golfers were compared: (1) full swing; (2) putter and short approach; and (3) freedom of choice. Sixty-eight male and female college students participated in golf lessons twice weekly for 12 weeks, receiving small group and individual instruction. Two forms of…

A collection of 20 papers describes innovative methods of second language instruction with the aim of promoting change and experimentation in language teaching. The papers are organized under four categories: background, the evolution of the comprehension approach, approaches to a rich acquisition environment, and approaches to a rich learning…

Significant relationships between the Holland Vocational Preference Inventory (VPI) and the Strong Vocational Interest Blank (SVIB) were again empirically demonstrated in this study, and conversion equations were developed to use standard scores of SVIB scales, rather than items, to produce estimates of VPI scores. (Author)

THE LACK OF COMMUNICATION BETWEEN THE EDUCATIONAL TELEVISION LECTURER AND THE STUDENTS WAS CONSIDERED. A FEEDBACK SYSTEM WAS DEVELOPED TO ENABLE A STUDENT TO INDICATE HIS RESPONSE TO A TV LECTURER'S QUESTION BY PUSHING ONE OF FIVE BUTTONS AT STUDENT STATIONS IN THE TV LECTURE AREA. VIA A READ-OUT DEVICE THE INSTRUCTOR EVALUATED THE STUDENT…

The Crossroads Survey, an adaptation of the macrostructural accounting techniques, was employed for purposes of testing the community development theory that services are added to communities in the same sequence. Dividing services and amenities into 2 categories (commercial and public/professional), the Crossroads Survey was conducted in Clinton…

The effects of instructional treatments are most often evaluated on the basis of an analysis of posttests given immediately following the completion of the instruction. In order to compare the relative effectiveness of different methods of instruction, it is also useful to know something about the retention effects of various instructional…

Studied was how two different methods of employing instructional materials in teaching elementary mathematics related to students' achievement in basic mathematical understandings. The sample consisted of fourth grade students in a university laboratory school. Students were randomly assigned to two groups, with an equivalent number of boys and…

Methods are described for comparing the educational goals of parents and school administrators. Data used to define goals consist of statements that parents made in the course of tape-recorded, personal interviews. A list of 450 goal statements was then categorized by the same parents and by a sample of school administrators. Percentages were then…

This paper is based on a particulate pollutant system study to delineate the deficiencies in knowledge regarding the nature and magnitude of particulate pollutant emissions from stationary sources. Presented at the 12th Conference on Methods in Air Pollution and Industrial Hygiene Studies, University of Southern California, April, 1971, it focuses…