Measures of variability are successfully used in predictive modeling in research areas outside of education. This study examined how standard deviations can be used to address research questions not easily addressed using traditional measures such as group means based on index variables. Student survey data were obtained from the Organisation for…

A statistical study of 90 students entering the Medical College of Virginia/Virginia Commonwealth University School of Pharmacy in 1974 indicates that PCAT scores are clearly superior predictors over these scores: SAT-Verbal and -Math; college quality point average (QPA); Otis Quick-Scoring Mental Ability Test; and pharmacy course grade. (LBH)

THE PRIME CRITERION OF SUCCESS OF A NURSING PROGRAM IS OCCUPATIONAL PERFORMANCE OF GRADUATES. AS AN INTERMEDIATE STEP, THE AUTHOR INVESTIGATED THE RELATIONSHIP OF CERTAIN PERSONAL CHARACTERISTICS (AGE, SEX, MARITAL STATUS, NUMBER OF CHILDREN, NUMBER OF BROTHERS AND SISTERS, FATHER'S AND MOTHER'S EDUCATION, AND SCHOOL AND COLLEGE ABILITY TEST…

An investigation was undertaken of the intercorrelations among residuals obtained by applying regression techniques under two conditions: (1) mean sixth-grade Metropolitan Achievement Test reading scores predicted by mean second-grade Stanford Achievement Test reading scores, and (2) mean sixth-grade reading scores predicted by mean second-grade…

The Brain Wave Analyzer (BWA Ertl 02) was used to measure the brain potentials of 110 public school children. Resulting scores were correlated with concurrent measures of school achievement. Results indicate that certain brain wave scores have relatively low correlations with school achievement compared to traditional intelligence measures but may…

The achievement test residual's ability to discriminate between school systems has potential as a useful measurement of school system output. (LN)

How accurately deltas (statistics measuring the difficulty of items) established by pre-test populations reflect deltas obtained from final form populations, and the consequent utility of pre-test deltas for constructing final (operational test) forms to meet developed statistical specifications were studied. Data were examined from five subject…

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…

If any one fact has emerged consistently in the International Project for the Evaluation of Educational Achievement (IEA) studies of educational achievements, it is that achievement is related to a variety of factors in the home background of children. This is true so far as differences in the achievements of single students within a country are…

The purpose of the investigation was to determine the construct validity of a standardized achievement test. The test, administered to over 5800 subjects, is one examination in a diploma program for students pursuing the Chartered Life Underwriter (CLU) designation. Results of factor and multiple discriminant analysis indicated the presence of…

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…

It is suggested that bias--when associated with a predictor, a test, or a statistical estimator--is not always bad, in spite of the immediate negative response evoked by the word, bias. Four settings are described to illustrate situations in which a procedure should not be summarily rejected due to bias: (1) educational researchers rejected the…

Data from the National Science Foundation Fellowship applicant records and the NRC Office of Scientific Personnel Doctorate Records File were utilized to evaluate the potential of GRE Aptitude and Advanced Tests as predictors of whether or not the candidate attained the doctorate within a period of from seven to ten years. In addition, the study…

Samples of Anglo, Black, Mexican-American, and Papago Indian students (N=260 per group) were administered the Metropolitan Achievement Test and the Wechsler Intelligence Scale for Children-Revised (WISC-R). Various concepts of cultural fairness were identified from the literature and then used to design analyses of these data. Regression equations…

Having low literacy skills could impact everything from reading a newspaper and balancing a checkbook to wise consumer decisions and job advancement. This study estimates adult literacy measures for Cuyahoga County, Ohio and its municipalities. It is also important to have a sense of how many children are at risk for developing literacy problems…