Mediational models predicting college students' adjustment were tested using regression analyses. Contemporary adult attachment theory was employed to explore the cognitive/affective mechanisms by which adult attachment and perfectionism affect various aspects of psychological functioning. Consistent with theoretical expectations, results indicated a significant influence of cognitive/affective factors in the relationship between attachment and adjustment, and in the relationship between perfectionism and adjustment in college students. Additionally, college cognitive/affective factors significantly influenced the relationship between attachment and psychological distress, and the relationship between perfectionism and psychological distress. (Contains 79 references and 6 tables.) (Author)