"A psychological test is considered strong if it has a test-retest reliability of at least 0.7, and preferably over 0.8.

Current studies have found the race IAT to have a test-retest reliability score of 0.44, while the IAT overall is around 0.5 (pdf); even the high end of that range is considered “unacceptable” in psychology. "

Took 1/4 the article to show the goods