... Guide to Community Preventive Services, published by the Centers for Disease Control and Prevention (CDC) at www.thecommunityguide.org. Contents This monograph consists of three parts. For ... individual-level behavior change theories often comprise broader-level models of group, organizational, community, and national behavior. Individuals participate in groups, manage organizations, ... contacts a community-based organization that has been working to improve neighborhood conditions, and shares the findings with them (participation). The organization s leaders invite department staff...