**Statistics Tools**

If you are overwhelmed by statistics and don`t know where to start, these tools will see you through to professional results and reporting. Some are free, some require you to be a (free) member, and some require a paid membership. My top pick is **Laerd** – very reasonable fee for an incredible website that will take you from selecting a test to reporting and graphing the results.

WebStat: Basics to advanced. Research design: how to start. http://webstat.une.edu.au/

Research tools:Sample Size Calculator, and Margin of Error Calculator. Essential tools to estimate the number of participants you need *before* starting. http://www.relevantinsights.com/research-tools

Russ Lenth`s power and sample size. Applets to help you *plan* your research parameters. http://homepage.stat.uiowa.edu/~rlenth/Power/

Wiki Statistics/Data Analysis http://en.wikibooks.org/wiki/Statistics/Data_Analysis/Data_Cleaning

**Laerd Test Selector** (Awesome, awesome website with great support!) **https://statistics.laerd.com/**

Raynald`s SPSS Tools (Written by an SPSS enthusiast) http://spsstools.net/

lynda.com (video courses) http://www.lynda.com/

SPSS tutor http://commons.esc.edu/spss/

Statistics help for students http://statistics-help-for-students.com/

Cross Validated (where to ask questions when you have a major, advanced-level statistics problem) http://stats.stackexchange.com/

Result Whacker (for statistical effect sizes) http://www.polyu.edu.hk/mm/effectsizefaqs/calculator/result.html