In order to study the signal-sight reading learning and the factor structure of intellectual abilities at preliterate moderate and severe levels of mental retardation (IQ 25-55), a test battery of items covering six hypothetical factors was constructed and administered to 80 preliterate mentally retarded subjects. The four factors extracted…

A variety of path models involving unmeasured variables are formulated in terms of Joreskog's general model for the analysis of covariance structures. (Author)

A very general model for the computation of independent cluster solutions in factor analysis is presented. The model is discussed as being either orthogonal or oblique. Furthermore, it is demonstrated that for every orthogonal independent cluster solution there is an oblique analog. Using three illustrative examples, certain generalities are made…

An historical overview of investigations concerned with delineating the structure and composition of infant intellectual activity is presented. Earlier conceptualizations characterized infant intelligence as a unitary trait or factor. Recent studies contend that infant intellectual activity is comprised of varied sets of relatively independent…

A battery of 16 newly devised tests intended as measures of "fluid" intelligence were administered, together with a number of other measures, and factor analyzed separately for a sample of Black children and a sample of White children. The results were judged to confirm the construct of fluid intelligence. (CTM)

Twenty primary abilities were measured using the Comprehensive Ability Battery. Factor analysis produced six oblique second-stratum factors. Four were identified as capacities in Cattell's triadic theory of ability structure. Correlations among factors yielded three oblique third-stratum factors. Implications for a hierarchical conceptualization…

The Illinois Classroom Assessment Profile is a teacher rating scale that is sensitive to behavior disorders exhibited by hyperactive children. The behavioral dimensions represent sustained attention, impulsivity, conduct, fine motor coordination, and evaluative anxiety. The development of the scale and investigations of its factor structure are…

Heim's AH4 Test of General Intelligence, Raven's Advanced Progressive Matrices, and two Piagetian formal operations tests (Shayer's Science Reasoning Tasks and Arlin's Test of Formal Reasoning) were administered to 459 15-year-olds attending Secondary three (grade nine) in Singapore. A hierarchical factor structure was found underlying all of…

The current study explores the item structure of the Myers-Briggs Type Indicator (MBTI). A factor analysis of responses of a large sample yielded six salient factors, four resembling the four scales of the MBTI. (Author/LMO)

The 72-item Erikson Psychosocial Stage Inventory (EPSI) was factor analyzed for a group of 534 university freshmen and sophomore students. Seven factors emerged, which were labeled Initiative, Industry, Identity, Friendship, Dating, Goal Clarity, and Self-Confidence. Item's representing Erikson's factors, Trust and Autonomy, were dispersed across…

Meredith's method of extracting a factorially invariant solution is adapted to longitudinal settings. An explorational estimation procedure is presented which attempts to identify the longitudinal factor components of an across occasion variance-covariance matrix. Data from 166 subjects on the Wechsler Adult Intelligence Scale is used to…

Through use of confirmatory maximum likelihood factor analysis in conjunction with the LISREL V computer program, an evaluation was made of the validity of higher-order ability constructs in structure-of-intellect tests all containing semantic content and operations of cognition or evaluation. (Author/DWH)

Compares the factor structure and degree of deviance in the Behavior Problem Checklist. Regardless of the subject child's sensory handicap, the Conduct Problem and the Personality Problem factors were consistent. The pattern for the Inadequacy-Immaturity factor was much less consistent. (Author/AS)

Reports a series of studies in the development of the Personal Authority in the Family System (PAFS) questionnaire, designed to measure family processes based on aspects of current intergenerational family theory. Results indicated that the scales have good internal consistency, and test-retest reliability, and supported construct validity. (JAC)

The factorial validity of the Stanford Achievement Test (SAT) was investigated with a sample of first graders (n=393). Although eight areas are proposed from the SAT, this analysis produced only one general factor. Results suggest limiting SAT interpretation for first graders to a total score approach. (Author/BS)