|
one of the largest directories of the web |
|
Home : Science : Social Sciences : Psychology : Tests and Testing : Psychometrics
Psychometrics
Psychometrics is the branch of psychology (or statistics) which is concerned with the mathematical and statistical theory of test construction and test use. Literally "measurement of the soul", psychometrics is concerned with mental measurement, often (but not invariably) through the use of questionnaires and tests. Questionnaires involve onself or another person reporting behaviour (e.g., 'I feel nervous alone in the dark' as part of a test of anxiety) whilst tests require the behaviour to be demonstrated (e.g., the meaning of 'prescient' is (a) anticipating the future, (b) hairy, (c) bog-like).
Sites in Psychometrics
Psychometrics Research Unit
Research results, questionnaires and publications of the Psychometrics Research Unit (University of Valencia, Spain). Content a mixture of English, Spanish, Valencian and Portuguese.
Principal Components and Factor Analysis
Chapter from StatSoft's Electronic Statistics Textbook.
RepGrid
Includes the Centre for Person-Computer Studies, Knowledge Support Systems, RepGrid and WebGrid software details, and the Personal Construct Psychology site. Many full-text articles for download.
Reliability and Validity
Clear introduction to the nature and assessment of test reliability and validity.
Applied Psychometric Society
Resource for professionals in psychometrics. Operated by Fordham University.
The Correlation Coefficient
Online textbook by political scientist RJ Rummel.
Factor Analysis
Introduction to factor analysis, with worked examples.
Personal Construct Psychology Research Group
University of Wollongong based research group. Resources include free software for analysing repertory grids, and searchable citation database of PCP references.
Ingrid Yahoo Group
Free downloadable software for analysing repertory grids.
Multivariate Data Analysis
Outline for Michael Friendly's course on multivariate data analysis and linear statistical models in behavioural science research. Includes bibliographies, computing guides, notes, and SAS examples covering topics such as regression, ANOVA, and factor analysis.
Psychometric Research
Homepage of Daniel O. Segall. Includes PDF articles on the development of new psychological measurement techniques providing innovative solutions to applied testing problems.
Understanding Factor Analysis
Online textbook providing overview of factor analysis, by political scientist RJ Rummel.
Maydeu-Olivares, Albert
Albert Maydeu-Olivares' homepage at the University of Barcelona: includes some unpublished working papers.
Cooper, Colin
Contact details and resume for Senior Lecturer in Psychology at Queen's University, Belfast. Includes Macintosh program and documentation for performing exploratory factor analysis through generating and testing the fit of all possible simple-structure models.
Young, Forrest W.
Emiritus Professor of Quantitative Psychology at the University of North Carolina, Chapel Hill. Includes links to the VISta data visualization software, and plenty of resources for ALSCAL multidimensional scaling, including FORTRAN source code.
Institute for Objective Measurement
Rasch Scaling information from MESA at the University of Chicago. Includes full text articles.
Jefferson Psychometric Lab
University of Virginia based research group headed by Professor John J. McArdle. Includes COSAN, NOHARM, and LVLPS software for free download.
Latent Class Analysis and Latent Class Models
John Uebersax's resource for researchers interested in Latent Class Analysis (LCA) and Latent Class Models. Includes factor analysis of binary data.
L-BFGS-B Nonlinear Optimization Code
Bounded optimisation code (FORTRAN) for numerical analysis, from Northwestern University.
Multidimensional Scaling
Searchable bibliography and selection of recent papers, from the University of Newcastle.
Mx
Matrix algebra interpreter and numerical optimizer for structural equation modeling and other types of statistical modeling of data. Includes documentation and example code.
Psychometric Software
Mountain Shadows Phonemic Awareness Scale (MS-PAS) and selection of Macintosh and Windows statistical analysis software, including parallel analysis.
Psychometrika
Print journal of the Psychometric Society. Subscription and submission information and author instructions.
Latent Variable Interactions and Quadratics
Resources focused on latent variable interactions and quadratics. Includes a bibliography, FAQ, Excel templates, full text articles, and full text monograph.
Scientific Software International
Statistical software for the social sciences. Includes LISREL for structural equation modeling, HLM for hierarchical data analysis, and BILOG, BILOG-MG, MULTILOG, PARSCALE, and TESTFACT for IRT-based test analysis.
Structural Equation Modeling FAQ
Frequently asked questions for the SEMNET structural equation modeling discussion group.
Winsteps and Facets Rasch Analysis Software
Software to construct linear measures from ordered qualitative observations. Includes details of training workshops; free student version and manual available for download.
PMetric Psychometric Software System
Shareware for designing, applying, developing, and evaulating psychometric scales. The software features a scale editor, reliability analysis, central results database and other features.
Article: Increasing the Validity of Adapted Tests
Hambleton & Patsula (1999) article providing guidelines for adapting tests for cross-cultural and international uses--includes the ITC's Test Adaptation Guidelines
Bayesian Factor Analysis
Describes the Bayesian approach to factor analysis, which incorporates prior information and eliminates the need for rotation. Includes some full-text articles.
Paul Barrett
Free software for (advanced) psychometric analyses. Also a number of presentations on psychometrics.
The Reliability of Measuring Instruments
Tom Knapp's book on reliability of measurement is freely available on this website.
Promoting Stakeholder Acceptance of Computer-Based Testing
Jones (2000) article on communicating the value of and addressing issues regarding the implementation of computer-based testing.
Item Response Theory
This website by Lawrence Rudner introduces Item Response Theory, and includes a complete on-line book. |
|
cross references
other references
Science : Social Sciences : Psychology : Intelligence : IQ Tests Science : Social Sciences : Psychology : Personality : Tests