12.30-1.30pm, Wed 15th August 2018
Seminar Room 515, Level 5, 207 Bouverie Street, Carlton
Professor Susan Murphy, Professor of Statistics Harvard University, USA
Mobile devices along with wearable sensors facilitate our ability to deliver supportive treatments anytime and anywhere. Indeed mobile interventions are being developed and employed across a variety of health field, including to support HIV medication adherence, encourage physical activity and healthier eating as well as to support recovery in addictions. A critical question in the optimisation of mobile health interventions is:“When and in which contexts, is it most useful to deliver treatments to the user?” This question concerns time-varying dynamic moderation by the context (location, stress, time of day, mood, ambient noise, etc.) of the effectiveness of the treatments on user behavior. In this talk the micro-randomised trial design and associated data analyses for use in assessing moderation will be discussed. Susan will illustrate this approach with the micro-randomised trial of HeartSteps, a physical activity mobile intervention.