Thematic Apperception Test (TAT)
Here's your citation in American Psychological Association (APA) format:
Thematic Apperception Test (TAT). (n.d.). In Alleydog.com's online glossary. Retrieved from: https://www.alleydog.com/glossary/definition-cit.php?term=Thematic+Apperception+Test+%28TAT%29