The objective of this study is to evaluate the effectiveness of a small group intervention in improving knowledge, feeling of control, and behaviors related to self-management of diabetes. The intervention includes educational content on diabetes self-management as well as discussion of attitudes, feelings, and motivations about living with diabetes. The authors randomized volunteers into an intervention group that participated in the small-group learning activity and a control group that received a diabetes self-care book. A survey was conducted by telephone before and after each intervention and the difference in change over time between the groups was assessed for each outcome. Compared to the control group, participants in the small-group activity reported significant changes on all three outcomes adjusting for demographic differences between the groups. Because facilitating the learning session does not require clinically trained personnel, this type of intervention could broaden the resources available to people with diabetes.