Concludes that double spaced reading materials with verified right hand margins had a desirable effect on comprehension for a population of educable mentally retarded pupils. (RW)

The validity of various reliability-corrected procedures for adjusting for initial differences between groups in uncontrolled studies is established for subjects exhibiting linear fan-spread growth. The results are then extended to a nonlinear model of growth. (Author)

The validity of the equipercentile hypothesis of the Title I Evaluation and Reporting System norm-referenced evaluation model was examined using 3,224 seventh- and ninth-grade students. Findings from confidence interval procedures contradicted the equipercentile hypothesis. There was a pattern of large gains for students not receiving any special…

Describes a computer-based method of confidence-testing, available in batch processing and interactive form, which improves a student's ability to assess probabilities during clinical diagnosis. The methods and results of three experiments are presented. (EAO)

Reviews the major tenets of the groupthink hypothesis of Irving Janis, as well as the research on which it is based. Reviews previous research on group dynamics related to groupthink. Proposes guidelines for research to test the propositions of groupthink. (Author/RC)

Outlines six activities for grades six through nine designed to illustrate the processes used by archaeologists. These processes include observation, comparison, classification, communication, use of numbers, and hypothesis formation. (AM)

According to Hypothesis (H) theory, learning should be very difficult when the number of Hs the subject samples from is very large and/or the correct H is not available. These assumptions were tested with third- and fourth-grade children. In general, results supported these assumptions. (Author/MP)

Describes the experimental methods used to verify two hypotheses concerning the variability of linguistic behavior at the social and individual levels, within a homogeneous community. Postulates correlations among data from the social/individual "external dimension" and the "internal dimension" which is based on structural properties such as…

A 1977 survey of retired United Auto Workers designed to measure retiree propensity to return to work found that work propensity is a generalized attitude and not job-specific. Measurement of associated variables indicated that most retirees held attitudes unfavorable to a return to work. (MF)