An aspect of an undergraduate psychology course on adult development was the preparation of case records on adults who consented to be studied. Participants (1) developed their abilities to observe and accurately record adult behavior across a variety of ages and contexts; (2) withheld judgments about behavior when evidence was lacking; (3) substantiated statements about behavior with evidence; (4) sought the meaningfulness and/or function of behavior; (5) gained knowledge and appreciation of what adults are up against at different ages and stages of the lifespan; (6) came to understand the developmental tasks of adults at various ages; and (7) became aware of the different views of human behavior. An appendix presents a case study guide and review form.