psychometrics tests and testing psychology Psychometrics

    Psychometrics Tests and Testing Psychology













Psychometrics Tests and Testing Psychology


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).

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    Top: Science: Social Sciences: Psychology: Tests and Testing: Psychometrics

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- Free software for (advanced) psychometric analyses. Also a number of presentations on psychometrics.


  • - Hambleton & Patsula (1999) article providing guidelines for adapting tests for cross-cultural and international uses--includes the ITC's Test Adaptation Guidelines
  • - Introduction to factor analysis, with worked examples.
  • - Print journal of the Psychometric Society. Subscription and submission information and author instructions.
  • - Matrix algebra interpreter and numerical optimizer for structural equation modeling and other types of statistical modeling of data. Includes documentation and example code.
  • - Online textbook by political scientist RJ Rummel.
  • - Rasch Scaling information from MESA at the University of Chicago. Includes full text articles.
  • - Searchable bibliography and selection of recent papers, from the University of Newcastle.
  • - John Uebersax's resource for researchers interested in Latent Class Analysis (LCA) and Latent Class Models. Includes factor analysis of binary data.
  • - Online textbook providing overview of factor analysis, by political scientist RJ Rummel.
  • - University of Virginia based research group headed by Professor John J. McArdle. Includes COSAN, NOHARM, and LVLPS software for free download.
  • - Free downloadable software for analysing repertory grids.
  • - University of Wollongong based research group. Resources include free software for analysing repertory grids, and searchable citation database of PCP references.
  • - Resource for professionals in psychometrics. Operated by Fordham University.
  • - Research results, questionnaires and publications of the Psychometrics Research Unit (University of Valencia, Spain). Content a mixture of English, Spanish, Valencian and Portuguese.
  • - Jones (2000) article on communicating the value of and addressing issues regarding the implementation of computer-based testing.
  • - Clear introduction to the nature and assessment of test reliability and validity.
  • - Resources focused on latent variable interactions and quadratics. Includes a bibliography, FAQ, Excel templates, full text articles, and full text monograph.
  • - 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 ana
  • - Mountain Shadows Phonemic Awareness Scale (MS-PAS) and selection of Macintosh and Windows statistical analysis software, including parallel analysis.
  • - Bounded optimisation code (FORTRAN) for numerical analysis, from Northwestern University.
  • - 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.
  • - Chapter from StatSoft's Electronic Statistics Textbook.
  • - Homepage of Daniel O. Segall. Includes PDF articles on the development of new psychological measurement techniques providing innovative solutions to applied testing problems.
  • - 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.
  • - Software to construct linear measures from ordered qualitative observations. Includes details of training workshops; free student version and manual available for download.
  • - Shareware for designing, applying, developing, and evaulating psychometric scales. The software features a scale editor, reliability analysis, central results database and other features.
  • - Describes the Bayesian approach to factor analysis, which incorporates prior information and eliminates the need for rotation. Includes some full-text articles.
  • - 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.
  • - Frequently asked questions for the SEMNET structural equation modeling discussion group.
  • - Albert Maydeu-Olivares' homepage at the University of Barcelona: includes some unpublished working papers.
  • - This website by Lawrence Rudner introduces Item Response Theory, and includes a complete on-line book.
  • - Tom Knapp's book on reliability of measurement is freely available on this website.

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