Four major points summarize the findings of studies for Category IV (low ability) Marines and sailors. First, Armed Forces Qualifying Test (AFQT) score is a valid predictor of an enlistee's performance and adjustment in military service. Category IV enlistees are inferior to average enlistees on a variety of measures of military adaptation.…

To investigate intelligence level, academic achievement, nonacademic achievement, ideational productivity, and the uniqueness of the ideas produced, a sample of 503 incoming freshman university students was recruited. Intelligence was measured by using students' Scholastic Aptitude Test scores; verbal and visual stimuli were used to elicit ideas.…

The differential validity of subject area tests of academic ability is investigated. Principal components analyses of test scores, high school grades, and college grades in English math, social studies, and natural sciences show a dominant general ability dimension and a consistent configuration of subject areas on second and third dimensions.…

To determine factors influencing the permanency of a protrustional lisp and to incorporate them into predictive profiles, approximately 8,000 kindergarten children were screened for articulation and those appearing to have a protrusional lisp were tested individually. The 1,043 subjects exhibiting such a lisp were examined semiannually for 4 years…

The predictive validity of the Scholastic Aptitude Test (SAT) for Mexican-Americans is investigated. Forty-two Mexican-American freshmen students who entered the University of California, Riverside, in the Fall 1971 participated in the study. Analyses of variance concerning ethnic groups on GPA (grade point average) and SAT verbal (SATV) and math…

A latent trait model, the Rasch, was fitted to a criterion-referenced test. Approximately 90 percent of the items fit the model. Those items which fit the model were then calibrated. Based on the item calibration, individual ability estimates and the standard errors of those estimates were calculated. Using the ability estimates, it was possible,…

A mathematical model for computer-aided instruction has been developed. The assumption is made that the course is divided into a hierarchy of levels of difficulty and that if a student is able to perform successfully at a given level of difficulty, he can also perform successfully at all levels of lesser difficulty. Furthermore, if a student…

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…

The current status of career counseling theory is explored. The emphasis is on counselee self-knowledge rather than counselor knowledge about and duration of the counselee. Noting that occupational information is abundant and that some methods of accumulating information about counselees' attitudes, values and interests are available, the authors…

This study was conducted in an attempt to analyze selected aspects of the social milieu surrounding elementary school children. The relationship between the two techniques used in measuring this social environment was also of interest. Fourth and fifth grade students' affective reactions to the following stimuli on both techniques formed the data…

Perinatal variables were used to predict 7-year outcome for 538 children, 32% Negro and 68% white. Mother's age, birthplace, education, occupation, marital status, neuropsychiatric status, family income, number supported, birth weight, one- and five-minute Apgar scores were regressed on 7-year Verbal, Performance and Full Scale IQ, Bender, Wide…

The relation of average grades awarded to the average ability of the students was studied in a large sample of colleges. The mean and standard deviation of freshman classes on an ability test, along with the mean and standard deviation of the freshman year grades obtained by classes over a five year period was available for several hundred…

The teaching guide for secondary students focuses on the structure, authority, and decision making procedures of international organizations and their ability to keep peace. Students participate in an exercise for predicting how present organizations can handle peace-threatening situations and how they can be designed to improve their peacekeeping…

State and Federal Governments can provide aid to local school districts in many different forms, which, in general, will have different effects on school district spending. Policymakers, therefore, need to know what the impacts of alternative aid programs will be in order to best achieve their objectives. This report presents a method, based on a…

This report is part of a 10-city national study of revenues and expenditures shared by a local government. The purpose of the study is to project operating revenues and expenditures of the Albuquerque public schools through 1975. The revenue projection includes all sources and uses various methods for estimating Federal, State, and local revenue.…