Statistics Links

What is It?

 Glossary of Probability Terms

A set of statistical and probability terms and definitions. Neat!

 Online Interactive z-Score Converter

Calculates z-Scores from a given mean, standard deviation and raw score. Also returns the cumulative probability of the z-score and shows where the z-score lies on a normal distribution.

 Online Random Number Generator

An online site that is a fast, efficient time-saving tool for generating sets of random numbers. 

 Vassar Stats

Professor Richard Lowry's (Vassar College) statistics website. A great resource for checking homework and a great resource for those who do not like using SPSS. Can calculate almost any statistic.

 Online Sign Test (Binomial Probability)

For those of you that hate the binomial probability function: An easy way to calculate whether the observed number of occurrences out o some sample was significant.

 Online Wilcoxon Ranked Sign Test

Like the above link, but this sign test takes the difference between pair members into account.

 t-Test Calculator

A quick method to check homework and calculations for both the correlated group and the independent-group t-Test.

 SPSS.com

Home page for that dreaded SPSS-thing. You know that you love it!

 Effect Size Resources

Sampling Distribution "Proof"

 Great webpage the explains a lot about effect size measures between samples and how to calculate effect size