Over the past ten years, public child protective services (CPS) agenci
es have adopted risk assessment systems in an effort to improve the qu
ality of service delivery to children and their families. Various revi
ews of the impact of these models suggest that they have not lived up
to their expectations and have had little or no impact on broad system
indicators of service delivery. Foremost among the findings of existi
ng studies is that these models have not been implemented and used as
intended. The risk assessment field has not taken advantage of theoret
ical principles suggested by the organizational change literature. The
researcher applies Lewin's Force Field Analysis to identify the force
s for and against effective implementation of risk assessment systems
in public agencies. The author suggests that lessons from theory could
improve the effectiveness of the implementation of change in CPS agen
cies.