The comprehension of aurally-presented narrative passages by fourth-grade children as a function of listening rate and performance on 11 predictor variables was investigated. The predictor tests included: PPVT, Otis Intelligence Test, MAT, Listening Comprehension, Digit Span, Coding, Auditory Attention Span, Clerical Speed, Perceptual Speed,…

Kindergarten children were randomly assigned: free play, make-believe, imitation, and control. Given an alternate-uses test (paper towel, match box, paper clip, and screwdriver), free play and make-believe subjects produced significantly more nonstandard responses for paper clip than control subjects and make-believe subjects more than free play…

Experiments where participants are randomly assigned into experimental and control groups are often regarded as the ideal approach to evaluation of labor force policies. This paper shows that such design can yield misleading and incomplete information. It proposes alternate designs that permit estimation of marginal as well as average program…

An examination of the scientific basis of both control group designs and comparative designs in outcome research reveals that comparative designs generally have fewer threats to validity and provide a more efficient means of control for nonspecific treatment factors suggesting that comparative studies warrant a larger role in the study of…

This booklet contains questions and answers about random assignment in program evaluation and intervention research. The main purpose of program evaluation research in education is to determine whether programs help the students they are designed to serve and whether new ideas for education programs still under development are worthy of extension…

Control subjects completed Book IV of the Edwards Personality Inventory under instructions to be honest while experimental subjects were instructed to fake so as to make an excellent impression while also concealing their faking. Differences between group means were small. (Author/EK)

The effects of in-service training programs on their participants are evaluated. (CK)

The relationship between children's social adjustment and their ability to read is discussed. (CK)

A problem for program evaluators involves a search for ways to maximize internal validity and inferential power of research designs while being able to assess long-term effects of social programs. A multimethodological research strategy combining a delayed control group true experiment with a multiple time series and switching replications design…

Rationale and procedures for conducting process analysis in evaluation research are discussed. Two different procedures for estimating mediation are discussed, as well as procedures for examining whether a treatment exerts its effects, in part, by altering mediating process that produces outcome. Benefits of process analysis in evaluation research…

CUTOFF is a program to identify the most efficient classification prediction cutting score. It ranks the scores of a criterion and a comparison group and organizes them into cumulative frequency tables allowing for immediate display of an index of correct identifications associated with each score. (Author/JKS)

Establishes a theoretical foundation for control groups; defines four types of control groups applicable to HPT (human performance technology) program evaluation and measurement; explores their validity; and presents scenarios for an electronic learning program to demonstrate the applicability of the control group methods for HPT program…

Explores the possibility of randomly assigning groups (or clusters) of individuals to a program or control group to estimate the impact of programs designed to affect whole groups. Applies the cluster-assignment approach to the evaluation of education programs targeting whole schools. Discusses statistical implications of the method. (SLD)

The aim of this study was to elucidate how prelingual deafness affects the ability to process written words. An experiment designed to reveal possible differences in the word-processing strategies and efficiency of a sample of prelingually deafened students (n = 18; mean grade = 5.1) and a task-matched hearing control group (n = 28; mean grade =…

Hand hygiene is a key element in preventing the transmission of cold and flu viruses. The authors conducted an experimental-control design study in 4 campus residence halls to determine whether a message campaign about hand hygiene and the availability of gel hand sanitizer could decrease cold and flu illness and school and work absenteeism. Their…