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