Historically, most researchers conducting factor analysis have used exploratory methods. However, more recently, confirmatory factor analytic methods have been developed that can directly test theory either during factor rotation using "best fit" rotation methods or during factor extraction, as with the LISREL computer programs developed…

The Bootstrap method, a computer-intensive statistical method of estimation, is illustrated using a simple and efficient Statistical Analysis System (SAS) routine. The utility of the method for generating unknown parameters, including standard errors for simple statistics, regression coefficients, discriminant function coefficients, and factor…

Factors affecting a lower-bound estimate of internal consistency reliability, Cronbach's coefficient alpha, are explored. Theoretically, coefficient alpha is an estimate of the correlation between two tests drawn at random from a pool of items like the items in the test under consideration. As a practical matter, coefficient alpha can be an index…

Two studies explored mothers' beliefs about the characteristics of effective mothers of preschool-aged children. Study One consisted of interviews of 50 mothers which were designed to generate a pool of characteristics associated with good mothering. Of the 33 characteristics generated, those most frequently mentioned were being loving, patient,…

The term "ipsative" refers to measurement based on intra-individual comparisons. The research literature in the social sciences contains many cautions about using ipsative data in multivariate analysis. The purpose of this paper is to identify the problems associated with the multivariate and regression analyses of ipsative data and to…

This paper reviews recent work in factor analysis of categorical variables. Emphasis is on the generalized least squares solution. A section on maximum likelihood solution focuses on extensions of the classical model, especially the normal case. Many of the recent developments have taken place within this context, and it provides a unified…

This study describes one type of analysis used to gather data on attitudinal climate in elementary schools. The Quality of School Life Scale (QSL) was administered to 142 4th, 5th, and 6th grade students in one southwestern elementary school. Responses to the QSL were analyzed using statistical and nonstatistical techniques. The data results are…

This study is a preliminary attempt to characterize the development of students' conceptions of education in a comprehensive fashion. The participants were recruited from a middle class suburban school district in Michigan. Seventy students in grades 3, 6, 9, and 12 were interviewed about several issues related to each of the following: (1) the…

This paper provides an up-to-date review of the relationship between item response theory (IRT) and (nonlinear) common factor theory and draws out of this relationship some implications for current and future research in IRT. Nonlinear common factor analysis yields a natural embodiment of the weak principle of local independence in appropriate…

Data from three subtests (language, mathematics, and social) scales of the Head Start Measures Battery (HSMB) were analyzed using principal components analysis (PCA) and non-metric multidimensional scaling (MDS). The HSMB measures preschool development in language, mathematics, nature and science, perception, reading, and social development. The…

Psychometric properties of the Alcohol Behavior, Attitude, and Awareness Inventory (ABAA Inventory) were assessed using data collected in 1987 from 799 university students. Results suggested that the ABAA Inventory was internally-consistent (alpha = .82) and stable over time (test-retest coefficient = .77). Subscale alphas ranged from .45 to .92,…

Data on 70 independent school districts within the East Texas School Study Council were studied to develop a model, based on dissatisfaction theory, that would predict a target election of a school board member. It was hypothesized that: (1) standard variables from the dissatisfaction theory would account for a significant amount of the variance…

The sources of variability in the Angoff standard-setting procedure, when applied to the Alabama High School Graduation Examination (AHSGE), were examined. The sources of variability examined are judges, rounds (replications), competencies (items), and interactions among these three sources. After training, the judges were given a statement of a…

The purposes of the present investigation are to compare the structure and level of multidimensional self-concepts for boys and girls from England and Australia, and to demonstrate the use of confirmatory factor analysis (CFA) in making such comparisons. Subjects were random samples of 303 English preadolescents and 303 Australians that were…

The overlap of the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Halstead-Reitan Neuropsychological Battery (HRNB) was investigated in light of their use in diagnosing children's learning problems. Scores for 1,181 children in the WISC-R and the HRNB were related using a canonical correlational analysis. One significant…