Implementation fidelity in community-based interventions


  • This work was supported in part by an award from the Golden Lamp Society of Rush University College of Nursing. The authors thank Dr. Mary Johnson for her helpful feedback and comments in preparing the manuscript.


Implementation fidelity is the degree to which an intervention is delivered as intended and is critical to successful translation of evidence-based interventions into practice. Diminished fidelity may be why interventions that work well in highly controlled trials may fail to yield the same outcomes when applied in real life contexts. The purpose of this paper is to define implementation fidelity and describe its importance for the larger science of implementation, discuss data collection methods and current efforts in measuring implementation fidelity in community-based prevention interventions, and present future research directions for measuring implementation fidelity that will advance implementation science.© 2010 Wiley Periodicals, Inc. Res Nurs Health 33:164–173, 2010