A study was undertaken at California's Riverside Community College District to determine predictors of grades and success rates in a first-semester general chemistry course. Fall 1996 course outcomes were analyzed for two groups of students: 137 who had completed the course, successfully or not, and 178 who had dropped it. Data were also collected…

California's College of the Canyons has used the College Board Assessment and Placement Services (APS) test to assess students' abilities in basic and college English since spring 1993. These two reports summarize data from a May 1994 study of the predictive validity of the APS writing and reading tests and a June 1994 effort to validate the cut…

The Bean and Metzner Nontraditional Undergraduate Student Attrition Model appeared to be a good model to address community college student attrition because it takes into account the environmental variables that colleges must consider to enhance persistence. A study was conducted to determine how well the Bean and Metzner Model fit with community…

In fall 1993, Golden West College (GWC), in California, participated in a large-scale study coordinated by Computerized Assessment and Placement Programs (CAPP) to gather evidence supportive of the College Board Assessment and Placement Services (APS) tests. The study focused on gathering instructor ratings of student preparedness levels in a…

In forecasting its fall credit headcounts, the Office of Institutional Research and Analysis at Prince George's Community College (PGCC) utilizes the Component Yield Method (CYM), an enrollment projection model developed by the college's planning analyst in the early 1980's. By disaggregating enrolled students into multiple groups, each with an…

A visual display is introduced that enables one to compare the predictive validities of all possible non-negatively weighted sums of two predictors. This two-predictor validity curve assesses the level of predictability of a criterion from composites of two predictors. Derivations are presented for the general case. For illustrative purposes, the…

This report addresses the problem of sample size in developing prediction equations for college freshman grade averages under the American College Testing (ACT) Assessment Program. For the ACT Assessment, the prediction weights are estimated by standard least squares procedures. Because prediction weights are estimated regression coefficients…

In 1986, a study was conducted by the Rancho Santiago Community College District (RSCCD) to evaluate the relationship between reading placement scores and classroom performance. The study sample consisted of students from fall 1985, spring 1986, and fall 1986 who had been tested using the College Board Assessment and Placement Test upon…

With the proliferation of suicide prevention centers in the United States, the task of rapidly and effectively assessing an individual caller's suicide potential has become an important research problem. However, the social science researcher is often confronted with an ethical problem when the results of his predictive equations can be used to…

Results are described for the first two phases of a study to develop and evaluate models of student progress in a technical training course being offered in a computer managed instructional environment at Lowry Air Force Base, Colorado. Several categories of models were developed in Phase I and defined by model type and by the type of variables…

Studies were conducted to determine whether measures of intellectual merit that are used as criteria for admission to the University of Karachi in Pakistan have predictive validity. The predictive validity of the intermediate examination score was studied with recent graduates of the pharmacy, medicine, and engineering schools. Additional studies…

Least squares and Bayes methods were used in a cross validation study conducted for comparison purposes. The study applies to situations with the following conditions: predictor data are given on the same scales; criterion data may be given on different scales; and it is necessary to pool data even though criterion scale differences exist. Such a…

This paper presents evidence bearing on the predictive validity of the College Board (CEEB) Achievement Average--defined as the arithmetic mean of all Achievement Test scores included on a candidate's CEEB Admissions Testing Program score report and now routinely reported to colleges--for women students in several liberal arts colleges. The…

A procedure for predicting categorical outcomes using categorical predictor variables was described by Moonan. This paper describes a related technique which uses prior probabilities, updated by joint likelihoods, as classification criteria. The procedure differs from Moonan's in that the outcome having the greatest posterior probability is…

From some simple and schematic assumptions about information processing, a stochastic differential equation is derived for the motion of a student through a computer-assisted elementary mathematics curriculum. The mathematics strands curriculum of the Institute for Mathematical Studies in the Social Sciences is used to test: (1) the theory and (2)…