Intelligence is related to executive performance though different kinds of executive work seem to require differing intellectual abilities. To examine these different intellectual functions and their relationship to performance ratings, 208 male executives completed the School and College Ability Test (SCAT), the Abstract Reasoning Test, and three…

Developmental and individual differences in mathematical aptitude were investigated as a function of knowledge structure and processing variables. Results indicated the relative importance of knowledge structure and strategy skills in aptitude test performance. Protocol data further elaborated the interrelationships between knowledge and process…

THE DATA FROM PREVIOUS STUDIES WERE USED TO DETERMINE IF THERE WERE DIFFERENTIAL NONINTELLECTUAL (PERSONALITY) CHANGES IN YOUNG ADULTS WHO DIFFERED MARKEDLY IN MEASURED ACADEMIC APTITUDE. THREE OF THE FORMER STUDIES WERE FOR A 2-YEAR TEST AND RETEST TIME PERIOD, AND TWO WERE FOR A 4-YEAR TEST AND RETEST TIME PERIOD. COMPARISONS OF NONINTELLECTUAL…

Ronald C. Johnson argued that if early environmental stimulation or deprivation has a significant effect on intellectual ability, then individuals who are genetically identical and who are exposed to a common early environment should resemble one another more closely in IQ than similar individuals who have not shared a common environment. Johnson…

This pretest report on the National Head Start Evaluation Project gives data on ethnicity and ages of children enrolled in four Head Start centers in Oklahoma, New Mexico, and Arizona, and describes the present status of evaluation at these centers. Completed pretests, proposed evaluation instruments, and available pretest data are presented.…

This is the latest in a series of reported findings for a Guidance Study which followed the same persons from infancy to age 40. The report focuses on: (1) how well the 50 men and 60 women subjects maintained their positions relative to I.Q. during the 22 years since they were last tested at age 18; (2) gains and losses in I.Q. over the 22 year…

Evaluated were 500 male inmates admitted to the Texas Department of Corrections over a 2-month period. The study was part of Project CAMIO (Correctional Administration and the Mentally Incompetent Offender), a Texas study to determine the incidence of criminal incarceration of the mentally retarded (MR) and to identify laws, procedures, and…

Studied was the relationship of the mentally retarded (MR) and the juvenile court through an attempt to determine the incidence of MR juveniles adjudicated by the juvenile court in one metropolitan county in Texas, to determine the attitude of juvenile probation officers toward the MR delinquent, and to determine the availability of community…

The Wechsler Intelligence Scale For Children (WISC) and the Metropolitan Achievement Test (MAT) were administered to seventh graders in a New York City school located in a depressed area with a Negro population approaching 100 percent. Full scale and subtest scores were analyzed. A factor analysis of the WISC, MAT, and the two scales combined was…

Item responses of two samples each of 622 normal and 573 educable mentally retarded children, 6 to 15 years of age, on Raven's Colored Progressive Matrices were submitted to a principal components analysis and varimax rotation. The following four factors were obtained: continuity and reconstruction of simple and complex structures, discrete…

This report summarizes the results of the administration of the vocabulary and Block Design subtests of the WISC to a national probability sample of noninstitutionalized youths 12 through 17 years of age. Information is presented on the derivation of percentile equivalents, normalized scale scores, and a short-form estimate of Face Scale Scores.…

A study was conducted to determine how well gifted students in grades 4-6 should be reading and whether traditional reading expectancy formulas are useful in predicting reading achievement of gifted students in the upper elementary grades. The total reading scores on the Comprehensive Test of Basic Skills (Form Q2) for 624 fourth and sixth graders…

This evaluation of cognitive change in Head Start children focused on changes in performance as opposed to changes in competence; specifically, that Binet test performance improves as a function of experience with Binet examiners. The study involved 93 children assigned to four groups who were tested for IQ gains during a 6-week Head Start program…

The instructional needs of culturally disadvantaged students must be differentiated from the needs of slow learners and from the needs of mentally retarded children. The characteristics of a disadvantaged student's family structure, home environment, and neighborhood all affect his learning potential. The special needs of disadvantaged students…