Describes adaptive statistical designs and their benefits, and some programs for optimizing and analyzing such designs.

Advanced statistics and optimization including Response and Yield Surface Modeling.

Statistical methodology for the analysis of multiple informants/sources with applications to child psychopathology and gerontology.

Links to departments, associations, data, software, teaching resources.

Interactive calculator performs tests of mediation in path analysis or structural equation models.

This data base contains materials designed help teach a Chance course or a more standard introductory probability or statistics course.

Chebyshev's inequality with one-tailed and unimodal versions, putting statistical limits on the dispersion of probability distributions.

On-line calculator for Cohen's d and r, presented by Lee A. Becker.

Specializing in the uses of entropy in statistics and science.

An index of free statistical software, data and resources.

Explains trade words used in the field. Includes resource links.

The Monte Carlo method provides approximate solutions to a variety of mathematical problems by performing statistical sampling experiments on a computer.

Collection of over 300 links to web pages that perform statistical calculations.

Item Response Theory (IRT) tutorial from the University of Illinois, Urbana-Champaign Psychology Department.

Directory of software for this statistical technique for modeling unmeasured categorical variables.

Resource for applied researchers and statisticians interested in the statistical method, Latent Class Analysis.

The media's use of statistics in a culture where public policy is often based on 'scientific' findings is more than a topic for journalism-school debates. Links to in-depth articles from a variety of perspectives.

Handbook for the understanding and practice of Meta-Analysis.

Discusses methods of how to use structured information for multi-dimensional data analysis. From the University of Naples.

On-line demonstration which runs an SAS program that calculates power or sample size needed to attain a given power for one effect in a factorial ANOVA design.

Online tool can be used to analyze frequency, equi-probability, general random, and point mutations.

Information and links on WWW servers in Statistics, mailing lists and newsgroups, statistical associations and departments, statistical software, miscellaneous, statistical quotes, and a directory of professional statisticians worldwide.

A free web-based service that offers instant random sampling and random assignment for researchers. Also has a user-friendly tutorial for students.

Academic research and resources for industry analysts and businesses interested in applying the latest statistical and analytical tools and technology.

Frequently asked questions about structural equation modeling.