Psychologists are emphasizing the importance of predictive conclusions. Machine learning methods, such as supervised neural networks, have been used in psychological studies as they naturally fit prediction tasks. However, we are concerned about whether neural networks fitted with random datasets (i.e., datasets where there is no relationship…

This article is concerned with developing a measure of general academic ability (GAA) for high school graduates who apply to colleges, as well as with the identification of optimal weights of the GAA indicators in a linear combination that yields a composite score with maximal reliability and maximal predictive validity, employing the framework of…

The test-retest reliability and predictive validity of the Northwestern Syntax Screening Test (NSST) with pre-kindergarten pupils was investigated. It was found to have moderate test-retest reliability, and to be moderately accurate in predicting general academic achievement test scores of pupils in kindergarten and first grade. (Author/GK)

This study examined the predictive validity of the Developing Cognitive Abilities Test (DCAT), a test similar in form to traditional intelligence tests but developed along a format that included both a cognitive taxonomy and content areas. Students in fourth through twelfth grades were administered the DCAT and the Achievement Series Test.…

This paper summarizes much of the available information concerning the reliability and validity of the Tests of General Educational Development (GED Tests). The data suggest that the results are sufficiently reliable for continued use and that the validity evidence generally supports the intended uses of the tests. (Author/LMO)

A 75-item instrument was developed to assess high school students' attitudes toward work. Fifteen scales were derived. Analysis of responses from 1,035 students showed high reliabilities. Group differences based on age, sex, previous work experiences, and vocational ambitions lent support to the validity of the scales. (Author/CM)

To determine if the observed correlation between two variables can be "explained" by a third variable, a significance test on the partial correlation coefficient is often used. This can be misleading when the third variable is measured with error. This article shows how the problem can be partially overcome. (Author/BW)

The Beery Developmental Test of Visual Motor Integration consists of 24 geometric forms that are to be copied into a test booklet. This study demonstrated the ability of the test to predict academic achievement in preschool children. (Author/JKS)

This study provides information about the cross-time stability of the Elementary Form of the Estes Attitude Scales and provides additional evidence for the criterion-related validity of these scales. To meet these objectives, children in grades three and four were administered the Estes scales for three successive years. (LMO)

Reliability, factorial complexity, and predictive validity of the Test of Syntactic Abilities Screening Test were determined from the responses of mildly hearing impaired, severely hearing impaired, and profoundly deaf students. Results showed that the test was unifactorial. Use of the total score to discriminate among students is justified.…

The ability of the Stanford Early School Achievement Test (SESAT) to predict scores on the Stanford Achievement Test (SAT) was assessed, using pupils in grades 1 and 2 from a large midwest suburban school district. Observed SESAT-SAT correlations ranged from .257 to .723. Author/CTM)

Investigations of the Inventory of Learning Processes (ILP) with college freshmen revealed satisfactory internal consistency coefficients for two of the four ILP scales but cast doubt on the factor structure of the inventory. As predictors of grade point average of Australian students, the scales were successful. (Author/GK)

This study compared double cross-validation replication predictive accuracies of six types of factor scores with full-rank data by utilizing data in which classroom achievement was predicted from affective and cognitive variables. Prediction was significantly more accurate for factor scores than for full-rank data. (Author/CP)