Session 3D / Session 5D
Intervention Fidelity: Models, Methods, and Applications
Chris Hulleman, University of Virginia
Hank Murrah, University of Virginia
Jeff Kosovich, University of Virginia

An intervention's effectiveness is judged by whether it produces positive outcomes for participants, with the randomized experiment being the gold standard for simplicity in determining the efficacy of an intervention.  If the intervention that is implemented in an experiment differs from the intervention that was designed, it may be challenging to distinguish whether unfavorable results are due to the failure to implement the intervention as designed, the efficacy of the intervention model, or some combination of each factor. It is therefore vital to accurately assess fidelity of implementation and, where possible, to incorporate fidelity data in the analysis of outcomes.

The objectives of this workshop are to:
(1) elaborate a five-step procedure for systematically assessing fidelity in the context of randomized controlled trials,
(2) describe the advantages of assessing fidelity with this approach when conducting experiments testing educational interventions, and
(3) illustrate how this procedure may be applied, utilizing a series of examples.

Workshop participants will be exposed to several statistical techniques to incorporate fidelity within analyses of program impacts, including OLS regression and Structural Equation Modeling

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