The influence of intervention fidelity on treatment effect estimates in clinical trials of complex interventions: a metaepidemiological study.
Páez Arsenio, Nunan David, McCulloch Peter, +1 more·Journal of clinical epidemiology
BACKGROUND AND OBJECTIVE: Randomized clinical trials (RCTs) provide the most reliable estimates of treatment effectiveness for therapeutic interventions. However, flaws in their design and conduct may bias treatment effect estimates, leading to overestimation or underestimation of the true intervention effect. This is…