Implementation of Evidence-Based Practice In Human Service Organizations: Implications From Agent-Based Models.

Much of the impact of a policy depends on how it is implemented, especially as mediated by organizations such as schools or hospitals. Here, we focus on how implementation of evidence-based practices in human service organizations (e.g., schools, hospitals)is affected by intraorganizational network dynamics. In particular, we hypothesize intraorganizational behavioral divergence and network polarization are likely to occur when actors strongly identify with their organizations. Using agent-based models, we find that when organizational identification is high, external change agents who attempt to direct organizations by introducing policy aligned messages (e.g., professional development emphasizing specific teaching practices) may unintentionally contribute to divergence in practice and polarization in networks, inhibiting full implementation of the desired practices as well as reducing organizational capacity to absorb new practices. Thus, the external change agent should consider the interaction between the type of message and the intraorganizational network dynamics driven by organizational identification.