Dr. Hayes conducts research on psychotherapy, with an emphasis on therapist factors that affect treatment outcomes. He also researches college student mental health, particularly among culturally diverse students. Since 2008, he has helped run the Center for Collegiate Mental Health. He teaches undergraduate and graduate courses that align with his research interests. His research has been supported by grants from various organizations, and his work has been recognized with an award from the American Psychological Association and the Society for Psychotherapy Research, among others. He recently completed a six-year term as editor of Psychotherapy Research. Dr. Hayes is a licensed psychologist and maintains a courtesy appointment in the Department of Psychology.