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Latent Class Analysis and Latent Class Models - http://ourworld.compuserve.com/homepages/jsuebersax/
John Uebersax's resource for researchers interested in Latent Class Analysis (LCA) and Latent Class Models. Includes factor analysis of binary data. |
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Mx - http://views.vcu.edu/mx/
Matrix algebra interpreter and numerical optimizer for structural equation modeling and other types of statistical modeling of data. Includes documentation and example code. |
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Young, Forrest W. - http://forrest.psych.unc.edu/
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. |
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Winsteps and Facets Rasch Analysis Software - http://www.winsteps.com/
Software to construct linear measures from ordered qualitative observations. Includes details of training workshops; free student version and manual available for download. |
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Personal Construct Psychology Research Group - http://www.psyc.uow.edu.au/research/pcp/index.html
University of Wollongong based research group. Resources include free software for analysing repertory grids, and searchable citation database of PCP references. |
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Multidimensional Scaling - http://www.ncl.ac.uk/mds/
Searchable bibliography and selection of recent papers, from the University of Newcastle. |
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Multivariate Data Analysis - http://www.psych.yorku.ca/lab/psy6140/
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. |
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Jefferson Psychometric Lab - http://kiptron.psyc.virginia.edu/
University of Virginia based research group headed by Professor John J. McArdle. Includes COSAN, NOHARM, and LVLPS software for free download. |
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Psychometrics Research Unit - http://www.uv.es/psicometria
Research results, questionnaires and publications of the Psychometrics Research Unit (University of Valencia, Spain). Content a mixture of English, Spanish, Valencian and Portuguese. |
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L-BFGS-B Nonlinear Optimization Code - http://www.ece.nwu.edu/~nocedal/lbfgsb.html
Bounded optimisation code (FORTRAN) for numerical analysis, from Northwestern University. |
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Reliability and Validity - http://seamonkey.ed.asu.edu/~alex/teaching/assessment/reliability.html
Clear introduction to the nature and assessment of test reliability and validity. |
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RepGrid - http://www.repgrid.com/
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. |
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Exploratory Factor Analysis - http://quantrm2.psy.ohio-state.edu/maccallum/factornew.htm
Extensive book manuscript by Ledyard Tucker and Robert MacCallum, available in PDF or PostScript. |
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Understanding Factor Analysis - http://www.hawaii.edu/powerkills/UFA.HTM
Online textbook providing overview of factor analysis, by political scientist RJ Rummel. |
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Paul Barrett's Homepage and Archive of Psychometric Software - http://www.liv.ac.uk/~pbarrett/paulhome.htm
Free software for (advanced) psychometric analyses. Also a number of PowerPoint presentations on psychometrics. |
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Psychometric Research - http://segalld.home.netcom.com/
Homepage of Daniel O. Segall. Includes PDF articles on the development of new psychological measurement techniques providing innovative solutions to applied testing problems. |
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Factor Analysis - http://www.psych.cornell.edu/Darlington/factor.htm
Introduction to factor analysis, with worked examples. |
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Maydeu-Olivares, Albert - http://www.ub.es/personal/amaydeu/amaydeuen.html
Albert Maydeu-Olivares' homepage at the University of Barcelona: includes some unpublished working papers. |
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Cooper, Colin - http://www.psych.qub.ac.uk/staff/cooper.html
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. |
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PMetric Psychometric Software System - http://userpage.fu-berlin.de/~satow/psysoft.htm
Shareware for designing, applying, developing, and evaulating psychometric scales. The software features a scale editor, reliability analysis, central results database and other features. |
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Latent Variable Interactions and Quadratics - http://www.wright.edu/~robert.ping/research1.htm
Resources focused on latent variable interactions and quadratics. Includes a bibliography, FAQ, Excel templates, full text articles, and full text monograph. |
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Bayesian Factor Analysis - http://varda.biophysics.mcw.edu/~dbrowe/BFA.html
Describes the Bayesian approach to factor analysis, which incorporates prior information and eliminates the need for rotation. Includes some full-text articles. |
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Ingrid Yahoo Group - http://groups.yahoo.com/group/ingrid/
Free downloadable software for analysing repertory grids. |
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Psychometric Software - http://espse.ed.psu.edu/spsy/Watkins/Watkins3.ssi
Mountain Shadows Phonemic Awareness Scale (MS-PAS) and selection of Macintosh and Windows statistical analysis software, including parallel analysis. |
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Scientific Software International - http://www.ssicentral.com/
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. |