|Title||Assessing Time-Varying Causal Interactions and Treatment Effects with Applications to Mobile Health|
|Year of Publication||2016|
|Authors||Murphy, Susan A.|
A critical question in the development of mobile health interventions is in which contexts, is it most useful to push treatments to the user. This question concerns interaction effects between time-varying context (location, stress, time of day, mood, ambient noise, etc.) and a time-varying treatment on user behavior. In this talk we discuss the micro-randomized trial design and associated causal data analyses for use in assessing these types of interactions. We illustrate this approach with the micro-randomized trial, HeartSteps.