The Canadian Healthy Life Trajectories Initiative (HeLTI) Trial: a study protocol for monitoring fidelity of a preconception-lifestyle behaviour intervention

Abstract Background In evaluating technology-based behaviour change interventions, it is increasingly important to have a monitoring plan for intervention fidelity.It is important to maintain intervention fidelity to ensure that the theory-based intervention that is being tested is what causes the observed changes, particularly for eHealth behaviou

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