This is an open-source, web-based version of the Implicit Association Test (IAT; Greenwald, McGhee, Schwartz, 1998) that takes the category labels and items as input and outputs a file of all responses and response times.
THIS SITE IS NO LONGER BEING UPDATED! (1/22/2013)
To find the latest version, go to http://github.com/winteram/IAT
There you will find the latest updates and a link to slides explaining how to use it.