The multiple regression or general linear model (GLM) is a parameter estimation and hypothesis testing model which encompasses and approaches the more familiar fixed effects analysis of variance (ANOVA). The transition from ANOVA to GLM is accomplished, roughly, by coding treatment level or group membership to produce a set of predictor or…

This report is one of five submitted as products of a "Study Designed to Assist Planning of Research on Significant Instructional Features in Bilingual Education Programs." The reports are intended to assist the National Institute of Education (NIE) in its plans for a major new research study in bilingual education. The present report…

This study of the impact of television on the moods of adults examined responses to television in the subjects' natural habitats and compared mood states while watching television to moods associated with other daily activities. Data were gathered by the recently developed method of experiential sampling in which automatic paging devices signal…

Analysis of covariance is examined for its usefulness in attribute-by-treatment interaction (ATI) research, where subjects are randomly assigned to treatments but not to levels of the attribute factor. Contrary to what might be expected, the use of a covariate does not confound the interpretation of the interaction between attribute and treatment,…

Levin's (1975) sample-size determination procedure for completely randomized analysis of variance designs is extended to designs in which antecedent or blocking variables information is considered. In particular, a researcher's choice of designs is framed in terms of determining the respective sample sizes necessary to detect specified contrasts…

This report is a product of research conducted under a program exploring improved methods of acquiring data on sensitive topics, such as the scope and intensity of current social problems. In this case, the problem studied was drug abuse in the Army. A mail survey dealing with illicit drug use was conducted, comparing the data acquisition…

The procedures for the selection of a test population to use and evaluate the short units developed by the Sociological Resources for the Social Studies Project (SRSS), "Episodes in Social Inquiry Series," are considered. They wanted to assess the effectiveness of the materials under a variety of circumstances: classes from different…

In some correlational studies it is not reasonable to assume that bivariate observations are uncorrelated. An example would be a configural analysis in which two individuals are correlated across several variables (e.g., Q-technique). The present study was a Monte Carlo investigation of the robustness of techniques used in judging the magnitude of…

This report summarizes the methods used to study a nationwide sample of over 6000 low-income people, both welfare recipients and the working poor. The objectives were: (1) to find out if self-actuated work behavior among low-income people is related systematically to identifiable characteristics of the individual; (2) to develop hypotheses…

The objective of this study was to obtain an overall evaluation of hotels and motels with specific emphasis on the industry's image as an employer among the general public. Findings are based on a personal interview research survey conducted among 994 men and women 18 years of age and over, and among 622 teenagers living in private households in…

The first of a two-part study of the comprehensive 1962 public library survey, this report presents institutional data for public libraries serving 35,000 persons and above. In content and coverage it continues the 1960 public library survey which was released in three parts in 1961 and 1962 under the title, "Statistics of Public Library…

The feasibility of using ticket dispensing machines to collect campground fees was tested in the California Region of the U. S. Forest Service during the summer of 1961 and described in this report. In addition, tests were made on the performance of tickets as a source of information. This part of the research was conducted with the belief that…

A simple, rigorous, small-sample statistical technique is described for testing the hypothesis that two sets of measurements differ only because of errors of measurement and because of differing origins and units of measurement. (Author)

The notion of comparing in curriculum evaluation is discussed, and some approaches to making comparative judgments about program effectiveness during the formative and summative evaluation stages are examined. Sources of information provided by external and internal program comparisons are described, and a model in which a policy capturing…

A sample design of schools in an elementary school survey is presented. This sample outlines two states of sampling. First is a sample of 750 schools drawn for purposes of describing compensatory programs. The second-stage sample is a subsample of 200 schools for purposes of performance testing of pupils. (CK)