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Table 1 Comparison of the stages in an evaluation of complex interventions to stages of drug evaluation.

From: Translating clinicians' beliefs into implementation interventions (TRACII): A protocol for an intervention modeling experiment to change clinicians' intentions to implement evidence-based practice

Evaluation of drugs


Phase I

Phase II

Phase III

Phase IV

Evaluation of implementation strategies



Exploratory trial

Definitive RCT

Long term implementation