Research / Data
Inter-University Consortium for Political and Social Research is a web portal (gold mine) with publically accessible datasets from
many different discipilnes.
- Data Archive
A collection of datasets and resources created by Gene Shackman for the Global Social Change Research Project in conjunction with
The International Consortium for the Advancement of Academic Publication (ICAAP).
- Research Methods Tutorials
This compilation by William M. K. Trochim is a very useful resource on a variety of research methods.
Social-Personality Psychology Questionnaire Instrument Compedium is a catalog of hundrets of instruments used in
assessmnet in psychology (with many free questionnaire links).
- U.S. Census Bureau
United States Census Bureau national data archives etc.
GIS Data Depot of the GeoCommunity. You will need to create a profile but there are many free datasets and shapefiles worth it.
National Bureau of Economic Research data compilation.
American Statistical Association. Join!! Most of the models in our field come from statisticians (not psychologists).
- Psychometric Society
Leading publisher (Psychometric: A journal of quantitative psychology) all things psychometric / quantitative psychology.
Educational Testing Services is the leading employer of psychometricians in the world. Many well
known statisticians and psychometricians have worked for and conducted research at ETS.
- College Board
The College Board has partnered for many years with ETS to form one of the strongest standardized
testing promoters in the country.
Central Institute for Test Development in the Netherlands started by Professor De Groot after a visit to Educational testing Service in NJ.
The Society of Mulivariate Experimental Psychology is a highly respected organization dedicating its resources
and focus to the field of quantitative psychology.
National Council on Measurement in Education.
American Educational Research Association (partner organization with NCME).
- APA: Division 5
American Psychological Association division of evaluation, measurement and statistics.
The American Institudes of Research is one of the largest behavioral and social science research organizations
in the world. Their overriding goal is to use the best science available to bring the most effective ideas
and approaches to enhancing everyday life.
Association for Psychological Science. A more quantitatively oriented APA.
The Research and Development Corporation is a nonprofit organization making significant contributions to
several social, economic and behavioral fields.
- RTI International
The Research Triangle Institute (North Carolina State, Chapel Hill and Duke) is an international nonprofit
research organization putting to practical use the international intellectual powers comprising this cooperation.
The National Center for Fair and Open Testing.
The International Society for Bayesian Analysis.
European Association of Psychological Assessment.
Focuses on international market and media consumer analysis.
Academy for Educational Development: Ideas changing lives.
The Buros Institute of Mental Measurement.
American College Testing Program (ACT) was founded by E. F. Lindquist, the mid-west competitor of the College Board.
CAVEON Test Security is an independent company investigating test practices, cheating and test fairness.
Council for Aid to Education.
- Riverside Publishing
Professional testing products and consulting services for local and state assessments.
- CTB McGraw-Hill
Test publisher and vendor for large-scale assessments. Also, has research units in educational testing and psychometrics.
One of the largest US based industry-leading for-profit assessment specialist firm. Pearson acts as the vendor for many state and nation-wide tests.
- Pearson VUE
Pearson Virtual University Enterprises (VUE) is a global leader in electronic testing for information technology, academic, government and professional clients.
- STEM Coalition
The Science, Technology, Engineering and Mathematics Education Coalition.
- The Foundation Center
Organization linking researchers and academics to funding resources.
Psychometric test vendor specializing in computer-based testing.
National Center for Competency Testing is a certification organization across a braod spectrum of specializations.
TeacherMatch is an organization dedicated to evaluating and validating teachers and their attributes.
- Cambridge Assessment
Cambridge Assessment is the University of Cambridge's international exam group.
- Ascend Learning
A world-leading technology company focusing on providing evaluation solutions.
- Measured Progress
Leader in customized K-12 assessments.
- Measurement Incorporated
Company providing achievement testing and scoring services.
The Fordham Council on Applied Psychometrics is the only graduate student organization chartered by the Graduate Student Association.
- Statistical Computing
UCLA Academic Technology Services web page on introductions to computer packages such as SAS, SPSS and Stata with
many output examples and interpretation guidelines.
- Business Statistics
Western Michigan University Statistics Department review of basci statistics and their presentation.
Philip Stark's (University of Berkley) comprehensive introductory statistics course online.
FREE statistical consulting with tons of materials to assist your analysis.
- Using R
Great introduction to using R for psychological research. Designed by William Revelle (Northwestern University).
- R Contributed Documentation
Full R statistical manuals, workbooks and examples.
- R Graphic Gallery
Source code for any graphic you could have ever thought of (and then some) for R.
- Raynald's SPSS Tools
One of the most comprehensive collections of SPSS syntax in the world.
UCLA ATA Statistical Consulting Group's useful statistics bookmarks.
Mathematics resources (i.e. Excel worksheets, articles etc.) for topics in algebra, geometry and others.
Patrick JMT's mazing math tutorials spanning a huge spectrum of topics.
Online learning and tutoring system to teach yourself statistics.
Software / Freeware
- R Project for Statistical Computing
The only open source code statistical software package of its kind. Absolutely free!
John Pezzullo's listing for online statistical computational interfaces (java & HTML based), as well as a huge collection of open source and free statistical software.
- G*Power 3
An amazing free power analysis program with a whole set of additional parameter regulations.
IRT Command Language is a DOS look-alike platforms for Item Response Theory modeling.
- Crime Stat III
A spatial statistics program for the analysis of crime incident locations.
Scientific Software International offers many student versions and trial packages (LISREL, HLM, PARSCALE etc.)
- GRASS GIS
The Geographic Resource Analysis Support System is the worlds only open source Geographic Information System (GIS).
Free spatial data analysis software from Dr. Luc Anselin.
- The BUGS Project
Bayesian inference Using Gibbs Sampling free windows software.
- Michael Brown Software
Software packages written by Dr. Michael Brown (Ohio State University).
A free windows time series analysis package.
- Amelia II
Program for the treatment of missing data written by Honaker, King and Blackwell (1999).
- Multiple Imputation Online
Collection of missing data imputation software, literature and links put together by Stef von Buuren at the
University of Leiden, The Netherlands.
SAS's homepage (http://www.sas.com). Nothing for free here but some good product information (link may not work because
SAS does not allow for cross web page linking).
Statistical Package for the Social Sciences main web page. Again, no freebies, but some source code for
SPSS statistical procedures and syntax.
- Lesson Planet
Search engine for tutors/instructors ranging a vast scope of topics in statistics and psychology.
- R Contributed Documentation
And some humor with statistics.
Great web page for those who are planning to attend a conference. Find a cheaper hotel near the conference site.
- Statistics Jokes
And some humor with statistics.
- Quote Garden
Fun and interesting quotations about statistics.