Details a study designed to test whether it was possible to decrease the predictive validity of the Metropolitan Readiness Test when students were grouped for reading instruction. (FL)

An historical overview of inductive logic is presented, including the logic of enumerative induction in its rule-derivative and event-predictive forms. An experimental test model of event-predictive induction in the linguistic medium is discussed along with its theoretical significance for future psychometric investigations. (Author/CM)

The relative contribution of undergraduate grade point average (UGPA) and the Law School Admission Test (LSAT) to predicting academic performance in each of three years of law school was investigated. The LSAT makes its greatest contribution in early years and UGPA in later years. (Author/BW)

When either regression models or subjectively-weighted models are used as aids in making placement decisions, the discriminant validity of these models is questioned. The validity of several regression models and of subjectively weighted models was investigated in two experiments. (Author/JKS)

The relative utility of premedical grade point average in distinguishing among prospective medical students and predicting medical school performance was evaluated in students from two medical school graduating classes. The measure was found susceptible to several extraneous sources of variance that negate its effectiveness. (MSE)

Uses a laboratory experiment involving role-playing groups to show that an assigned majority rule is likely to lead to higher-quality solutions than unanimity and no-decision rule. Results indicated under majority rule workers resistance to the foreman's power often resulted in a successful search for a better solution. (JAC)

Studies examine the validity of a desired control measure upon a survey of senior citizens to establish what contributes to their psychological adjustment. Desired control correlates with psychological adjustment, indicating that seniors who feel more in control of everyday events will be better adjusted. (Author)

It is shown that the Watson-Glaser Critical Thinking Appraisal (WGCTA) significantly predicted standing in a specialized course at the college level, lending credence to its criterion-related validity. The paper is based on a study of accelerated students pursuing a combined baccalaureate and professional program of medicine. (CE)

The results of a replication study are described that tested the predictive validity of a 34-item instrument designed to assess the fundamental constructs of Tinto's model of college student attrition. Potential institutional differences in faculty members' influence on retention were identified. (Author/MLW)

Analyzed 400 Wechsler Intelligence Scale for Children (Revised) (WISC-R) protocols to determine whether an abbreviated form could be identified that would be cost-effective. Results indicated that the derived prediction equation could be applied to the results of five designated WISC-R subtests to predict range of intellectual functioning with…

Studied the effect of different base rates of a target phenomenon on psychometric efficiency when an explicit decision-making rule was used to evaluate police officers. Concluded that numerous predictive indices would be required to screen such a heterogeneous population. (Author/JAC)

Argues against the implicit use of readability formulas as guides to writing graded texts and urges experimental research to define the real factors constituting readability. (AEA)

Results of the differences between cross-lagged panel correlations and of the consistency of them for 2,429 students within the first eight grades suggested that attitudes toward mathematics is causally predominant over mathematics achievement for what variance is shared in common. (Author/GK)

The merits of double exponential smoothing are discussed relative to other types of pattern-based enrollment forecasting methods. The basic assumptions and formulas for its use are outlined. The difficulties associated with selecting an appropriate weight factor are discussed, and the potential effect on prediction results is illustrated.…

The McCarthy Scales of Children's Abilities (MSCA) was administered to 80 urban black preschoolers. Five years later, 68 of these children were retested. This investigation demonstrated the predictive validity of the MSCA for urban black children against several criterion measures, including scores on elementary school reading tests. (Author/GK)