Th e use of interorganizational relationships such as collaboration, partnerships, and alliances between public, private, and nonprofi t organizations for the delivery of human services has increased. Th is article contributes to the growing body of knowledge on collaboration by exploring one kind of interorganizational relationshipinteragency collaboration -in the fi eld of early care and education. It examines variations within interagency collaborations and their impact on management and program outcomes. Th e fi ndings show that interagency collaboration has a clear impact on management, program, and client outcomes: Specifi cally, the intensity of the collaborative relationship has a positive and statistically signifi cant impact on staff compensation, staff turnover, and school readiness. Sally Coleman Selden is an associate professor at Lynchburg College. Her current research focuses on strategic human resource management in state governments and the impact of collaboration on nonprofi t organizational effectiveness. University of South Carolina. Her research focuses on public and nonprofi t management, including human resource management, nonprofi t organizational effectiveness, and collaborative service delivery.untested assumptions concerning the impact of collaboration (Milward 1996;O ' Toole 1997 ).Th e article is divided into fi ve sections. First, we review previous research on collaboration, focusing primarily on studies that develop typologies of collaborative forms and impact studies. Second, we describe the policy context in which this project examines interagency collaboration. Th ird, we describe the nature of collaboration in early care and education and develop a set of hypotheses about the impact of interagency collaborations on management processes and program outcomes. Fourth, we introduce the data and methods used in this study. Finally, we examine the hypotheses using the data collected and discuss the implications of the fi ndings.
Approaches to the Study of CollaborationA number of scholarly and practitioner communities are engaged in research about collaborative service delivery, each with its own perspective on how best to approach the topic. Research has focused on the factors associated with successful collaboration, the motives underlying the decision to collaborate, the types of collaborative models, and the outcomes of collaborative relationships (Foster-Fishman et al. 2001;Gray 1989;Mattessich and Monsey 1992;Mulroy and Shay 1998;O ' Regan and Oster 2000 ;Stone 2000). Because of the diversity of academic fi elds involved in the study of collaborative service delivery and the multiplicity of relationships, a considerable range and volume of research exists across disciplines. Th erefore, we will limit our review of the research by focusing on two areas that are directly relevant to our study. First, the review explores a few of the myriad of approaches scholars have taken to classify various forms of interorganizational relationships, with a focus on typologies and classifi cat...