Data collected from surveys can result in hundreds of variables and thousands of respondents. This implies that time and energy must be devoted to (a) carefully entering the data into a database, (b) running preliminary analyses to identify any problems (e.g., missing data, potential outliers), (c) checking the reliability and validity of the…

Objective: Confirmatory factor analysis was used to assess the factor structure of the 6-item version of the Kessler Psychological Distress Scale (K6). Methods: A subsample of emerging adults, aged 18-29 (n = 20,699), from the 2013 National Survey of Drug Use and Health were used in this study. Results: Each of the models (one-factor, two-factor…

This study aims to investigate the psychometric properties of the revised multidimensional scale of perceived social support (R-MSPSS) for Chinese school teachers. A questionnaire comprising the R-MSPSS and other psychological measures was administered to a sample of 539 school teachers in Hong Kong. A series of confirmatory factor analysis was…

"Diagnostic classification models" (DCM) are frequently promoted by psychometricians as important modelling alternatives for analyzing response data in situations where multivariate classifications of respondents are made on the basis of multiple postulated latent skills. In this review paper, a definitional boundary of the space of DCM…

Purpose of this note is to point to an obvious but useful relationship by which estimation of individual factor scores can be omitted when obtaining relationships between factors and an external set of variables. (Author)

Measures of the Halstead-Reitan Neuropsychological Battery (HRNB) were factor analyzed with subtests of the Halstead Category Test (HCT) for 277 9-year-old learning disabled subjects. Eight factors with eigenvalues greater than one were rotated to a final solution that accounted for 67.9 percent of the total variance. HCT-Subtest 1 loaded…

This is one of a series of reports on the National Longitudinal Study of Mathematical Abilities (NLSMA). It is a listing of correlation coefficients where each mathematical scale has been paired with each psychological scale. (See NLSMA Reports Nos. 4-6 for a description of these scales.) Besides each correlation matrix, a rotated factor matrix is…

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 study attempted to demonstrate significant relationships between systematically derived occupational descriptors and selected measures of worker characteristics in the affective domain. The predictor variables were derived from the Occupation Analysis Inventory (OAI) and consisted of work-dimension scores describing occupations in terms of…

Male school children (N=241), all aged 16 years, and 144 men facing redundancy completed the 60 item version of the General Health Qestionnaire. Data were analysed using unrotated first principal component analysis followed by oblique rotation. The unrotated first principal component accounted for much of the variance, particularly in the school…

An attempt is made to indicate why the concept of "true score" naturally leads to the belief that test validity must increase with an increase in test and/or average item reliability, and why this is correct for the classical single-factor model first introduced by Spearman. The statistical model used by Loevinger is introduced to…

A preliminary study examined the interrater reliability, factor structure, and convergent validity of the Haak Sentence Completion (in which the respondent is given a sentence stem and asked to provide the remainder of the sentence) using a three-point scoring system. The subjects were 100 boys ranging in age from 6 to 11 years who were randomly…

Ergometrics, the application of psychometric principles and procedures to the study of human work, draws from theories and principles of human behavior as well as from established procedures in psychological measurement and job analysis. The project described employs ergometrics to describe, compare, and group occupations for educational purposes.…

An experimental study examined the possibility that proximity error could bias results from semantic differential questionnaires. Proximity error occurs when, due to the ordering, or polarity, of the differential scales, one answer on the semantic differential results in another answer to a subsequent question being substantially changed from what…