The purpose of this study was to combine knowledge of teacher demographic data with time-series forecasting methods to predict teacher turnover. Moving averages and exponential smoothing were used to forecast discrete time series. The study used data collected from the 22 largest school districts in Iowa, designated as FACT schools. Predictions…

Koppitz Emotional Indicators (EIs) were used to predict the learning-related behavior of kindergarten children on the Lock Box and Guide to the Child's Learning Style. Findings supported the use of EIs as general estimates of learning-related behavior, but diagnostic utility was marginal for children with pathological scores. (Author/LMO)

Results of the Vocabulary, Reading Comprehension, and Mathematics Concepts subtests of the Iowa Tests of Basic Skills were analyzed for sex bias. On the whole, little evidence for sex bias was found for the four subtests and three grade levels examined. (Author)

Two statistical approaches for adjusting grades were tested on data obtained from four American law schools (642 students). Neither item response theory nor the general linear model yielded consistent improvements in the predictive validity of Law School Admission Test scores and undergraduate grades for three schools. (SLD)

This study assesses three methods of forecasting school enrollments: the cohort-sruvival method (grade progression), the statistical forecasting procedure developed by the Statistical Analysis System (SAS) Institute, and a simple ratio computation. The three methods were used to forecast school enrollments for kindergarten through grade 12 in a…

A search for better predictors of incomes of high school and college graduates is described. The accuracy of the prediction, implicit in the work of John R. Walsh of Harvard University, that the income differences in a given year are good indicators of income differences in future years, was tested by applying standard statistical procedures to…

This paper argues that to be appropriate the evaluation of teaching must occur under circumstances entirely free of the limitations which inferential statistics necessarily impose on teaching. Regardless of whether the statistical, design, and treatment assumptions required for the valid use of inferential statistics in education are met,…

Evidence on how the psychometric properties of verbal and quantitative academic aptitude tests are affected when item options are weighted using rather simple conceptual procedures is presented. This is discussed in connection with the scoring methods used on the Graduate Record Examinations. (DG)

The predictive validity of six tests of academic readiness were determined for Anglo, Black, and Mexican American first-grade children from middle and lower socioeconomic status (SES) homes. The tests were most valid for Anglos; least for Blacks; and more valid for middle than for lower SES children. (Author/GDC)

Emphasizes the importance of using both the factorial analyses of the interitem correlations and the 'predictive validity' coefficients as complementary empirical evidence for moving toward both the refinement of a theoretical conception of modernity and the revision of measures of modern attitudes. (Author/JM)

Statistical methods employed to test individual differences in dual-task performance and the existence of a general time-sharing ability are reviewed and critiqued. Specifically, both the types of data being collected and the types of data analysis procedures have been inadequate to the critical evaluation of a hypothetical…

The objective of this study was to devise a methodology for predicting the return or nonreturn of a student for the spring semester, upon his completion of the fall term. Nineteen variables from existing student files were examined by several multivariate analyses to determine their ability to help in such a prediction. The random sample was of…

THIS PAPER DEALS WITH SOME TESTS OF HYPOTHESIS FREQUENTLY ENCOUNTERED IN THE ANALYSIS OF MULTIVARIATE DATA. THE TYPE OF HYPOTHESIS CONSIDERED IS THAT WHICH THE STATISTICIAN CAN ANSWER IN THE NEGATIVE OR AFFIRMATIVE. THE DOOLITTLE METHOD MAKES IT POSSIBLE TO EVALUATE THE DETERMINANT OF A MATRIX OF HIGH ORDER, TO SOLVE A MATRIX EQUATION, OR TO…

Whether a change in dental students' attitudes toward three preselected concepts would occur as a result of a traditionally difficult dental education course as measured by the semantic differential method is determined. This study attempted to determine the predictive value of a student's attitudes in determining his/her final grade. The sample…

This review is one in a series intended to develop methods which maximize the use of the existing scientific literature as a basis for predicting human performance. It is concerned with sensory performance in target detection, defined in terms of the "probability of detection" of a flash of light. Two conditions of detection are…