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Date of Award


Degree Type

Thesis (On-Campus Access Only)

Degree Name

Master of Science in Psychology

Committee Chair

Dr. James Lane


Cognitive functioning influences the way humans navigate through every aspect of life. It is a proven predictive variable for health, job, and educational outcomes; specifically, those with higher intelligence tend to be healthier, hold better jobs, and obtain higher educational degrees. The purpose of this study is to examine the predictive power of intelligence in mental health treatment. Are those with higher intelligence able to experience more meaningful change in psychotherapy? This study explores the interaction between intelligence, operationalized as client IQ scores, and psychotherapeutic outcome, measured by changes in outcome measure scores from pre- to post-treatment. An analysis of 66 participants from the Pacific University Psychology and Comprehensive Health Clinic will test the hypothesis that those with higher intelligence will show more improvement in their psychological functioning throughout treatment than those with lower intelligence. This research intends to guide future mental health care by identifying a predictive variable that can further personalize treatment and increase overall positive outcomes.