The American Religion Data Archive
(ARDA) is a project funded by the Lilly Endowment, Inc. and acts to preserve quantitative data on American religion, to improve access to this data, to increase the use of the data, and to allow comparisons across data files. The ARDA collection includes data on churches and church membership, religious professionals, and religious groups (individuals, congregations and denominations).

The Electronic Journal of Probability
The Electronic Journal of Probability publishes full-size research articles in probability theory. The Electronic Communications in Probability (ECP), a sister journal of EJP, publishes short notes, survey articles, and research announcements in probability theory. The Electronic Journal of Probability is affiliated with the Institute of Mathematical Statistics.

Glossary of Social Science Computer and Social Science Data Terms
This glossary includes terms which you may find useful in managing data collections and providing basic data services. It does not attempt to cover all social science research terms or all computer terms. From UCSD.

Guide to Questionnaires and Surveys
Within this web site, you will find information related to the creation of surveys and questionnaires. The information is classified into 5 topics. Each topic presents a choice of articles. Each one is about a problem that can be experienced by someone engaged in a procedure of data collection with a survey. Note: beware of pop-ups. This is a Tripod site.

HyperStat Online
David Lane, The author of this Online introductory text and resource guide is an Associate Professor of Psychology, Statistics, and Management at Rice University

Mixed Method Evaluations
Mixed Method Evaluations was initiated because of the recognition that by focusing primarily on quantitative techniques, evaluators may miss important parts of a story. Experienced evaluators have found that most often the best results are achieved through the use of mixed method evaluations, which combine quantitative and qualitative techniques. From the NSF.

Pitfalls of Data Analysis
Pitfalls of Data Analysis discusses things that people often overlook in their data analysis, and ways people sometimes "bend the rules" of statistics to support their viewpoint. It also discusses ways you can make sure your own statistics are clear and accurate. Includes examples from medicine, education, and industry. By Clay Helberg, M.S. Research Design and Statistics Unit University of Wisconsin Schools of Nursing and Medicine

Selecting Statistics
Selecting Statistics is an online program that guides researchers to the proper statistical technique by answering questions about their data. A simple and elegant tool based on A Guide for Selecting Statistical Techniques for Analyzing Social Science Data, 2nd Ed. Survey Research Center, Institute for Social Research, The University of Michigan.

Statistical Good Practice Guidelines
Statistical Good Practice Guidelines is a series of guides on good statistical practice, intended primarily to give help to research and support staff in development projects. The guides are available to view online or to download for printing and reading offline. From the University of Reading.

Statistical Resources on the Web
Statistical Resources on the Web from the University of Michigan is a one stop data clearing house offering updated links to a large variety of data sources.

Statistics Glossary
Statistics Glossary either alphabetically or by area.

StatPages
The web pages listed here comprise a powerful, conveniently-accessible, multi-platform statistical software package. There are also links to online statistics books, tutorials, downloadable software, and related resources. All of these resources are freely accessible

Virtual Data Center
Virtual Data Center is an operational, open-source, digital library to enable the sharing of quantitative research data, and the development of distributed virtual collections of data and documentation. A joint project of the Harvard-MIT Data Center and the Harvard University Library