Calculation for the Sobel Test (Popularity: )

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

Research Randomizer (Popularity: )

A free web-based service that offers instant random sampling and random assignment for researchers. Also ...

Statistical Review (Popularity: )

Free formulae of rules for the expectation of mean, variance, covariance, correlation coefficient, proofs available ...

Adaptive Designs (Popularity: )

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

Chebyshev's Inequality (Popularity: )

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

Chance Database Welcome Page (Popularity: )

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

Interactive Statistical Calculations Page (Popularity: )

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

Statistical Inference on the TI-83/86/89 (Popularity: )

Contains problems and solutions on general topics of probability distributions, confidence intervals, hypothesis testing, analysis ...

History of the Monte Carlo Method (Popularity: )

The Monte Carlo method provides approximate solutions to a variety of mathematical problems by performing ...

Statistics to Use (Popularity: )

Online statistics demos.

Meta-Analysis (Popularity: )

Handbook for the understanding and practice of Meta-Analysis.

SEMNET FAQ (Popularity: )

Frequently asked questions about structural equation modeling.

GraphPad QuickCalcs (Popularity: )

Dozens of free online calculators for radioactivity calculations, detecting outliers, t tests, ANOVA post tests, ...

Second Moment (Popularity: )

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

Item Response Theory and Its Applications (Popularity: )

Scientific resources for item response theory approaches to measurement.

Statistical Methods for Rater Agreement (Popularity: )

Resources for researchers who want to analyze data on agreement among raters or diagnostic methods. ...

Biostatistics Resources on the World Wide Web (Popularity: )

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

IRT Tutorial (Popularity: )

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

Analysis of Multiple Informant Data (Popularity: )

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

Power Analysis for ANOVA Designs (Popularity: )

On-line demonstration which runs an SAS program that calculates power or sample size needed to ...