Validity coefficients, standard errors of estimate, and prediction are discussed. An argument is made for the potential utility of tests with validity coefficients of .60, .50, .40, and even .30, because they can predict the extremes, which is especially valuable for many purposes, such as counseling, college admissions, and personnel selection.…

Double-entry expectancy tables are used to make admissions, guidance, or employment decisions based on two predictors. Examples of their use in showing relationships between high school and college performance are explained. The advantages of double-entry expectacy tables given are: (1) relative simplicity of preparation requiring no formal…

To assist Pennsylvania school personnel in interpreting the reports resulting from that State's Educational Quality Assessment program, this manual provides information on the goals, dimensions measured, variables measured, and method used. Appendixes provide the school norms for Grade 5 and Grade 11, a Teacher Questionnaire, School Information…

The results of the Pennsylvania Educational Quality Assessment program, Phase II, are interpreted. The first section of the manual presents a statement of each of the Ten Goals of Quality Education which served as the basis of the assessment. Also included are the key items on the questionnaires administered to 5th and 11th grade students. The…

Based upon prior research in the College of Business and Public Administration and the first year of the university testing program at an upper division, midwestern university, implications for testing of older transfer students are drawn. Students should be tested before, or during, their first term of academic history. If remediation is not…

The purpose of this study was to determine the validity of the American College Test (ACT) in predicting academic achievement of students from an area which is culturally, economically, and educationally depressed. The population, chosen from 6 community colleges serving the Appalachian region of Kentucky, consisted of 1,127 full time (12 or more…

The purpose of this study was to investigate the practicality of multiple discriminant function analysis for deriving item response weights. Item responses on a job satisfaction questionnaire administered to 219 professional workers and 242 semi-skilled customer workers were analyzed. Discriminant functional analysis was conducted on the total…

The Kuder Richardson-20 Formula is shown to be a special case, where each examinee is given sufficient time to answer each item, of a more general formula where each examinee may not be allowed the necessary time. The formula is extended to allow two scores, knowledge and speed, to be extracted from each examinees test score. Using a sample of 82…

Statistical procedures are presented for determining ordinal and disordinal aptitude-treatment interactions with linear and curvilinear data. The paper presents a method for testing the homogeneity of group regressions for a single aptitude and provides models for expanding this test to linear and curvilinear regression planes. Procedures are…

This paper describes several situations in which generalization of statistical results is not possible by representative sampling but which is attempted using corrections for selection of groups. The situations include hiring, admissions, differential classification, guidance, test score equating, and test score scaling. Evidence of inaccuracies…

Alternative mathematical models for scoring and decision making with criterion referenced tests are described, especially as they concern appropriate test length and methods of establishing statistically valid cutting scores. Several of these approaches are reviewed and compared on formal-analytic and empirical grounds: (1) Block's approach to…

The French and Guilford-Zimmerman measures of spatial orientation and spatial visualization factors are compared. Both approaches to measurement are described. A study to assess the two approaches is reported. Both tests were administered to 40 college sophomores in a classroom setting according to published instructions. Pearson product-moment…

In order to develop tools for use in the selection and vocational-educational guidance of U.S. Naval Academy midshipmen, three empirically-based scales, designed using the Strong Vocational Interest Blank (SVIB), were developed to predict three criteria: (1) disenrollment for academic reasons, (2) disenrollment for motivational reasons, and (3)…

COUNSELORS OFTEN ADMINISTER TESTS OF QUESTIONABLE VALIDITY. IN RELIABILITY STUDIES, EVERY PRECAUTION IS TAKEN TO STABILIZE THE STIMULUS SITUATION. IN ASSESSING VALIDITY, CONCERN CENTERS ON BEHAVIOR UNDER DIFFERENT STIMULUS CONDITIONS. CRONBACH'S THEORETICAL LIMIT FOR A VALIDITY COEFFICIENT OF A TEST IS THE SQUARE ROOT OF THE RELIABILITY…

The stability and change of verbal, non-verbal, and total IQ scores from group tests were investigated for students tested at Grades 1, 2, 4, 7, 9, and 11. Conclusions are discussed in detail, and the following recommendations are made: (1) Group intelligence tests should not be routinely administered in Grades 1 and 2 unless the users and…