Web Applications


A sample size calculator for sequential, multiple-assignment, randomized trials with binary or continuous outcomes in which the primary aim is to compare two embedded dynamic treatment regimes.

Made in collaboration with Kelley M. Kidwell and Daniel Almirall.

Currently in beta. Implementation and/or methods are subject to change without notice.

MRT-SS Calculator

A sample size calculator for micro-randomized trials in which the primary aim is to detect the proximal effect of providing an intervention.

Made in collaboration with Ji Sun and Peng Liao.

R Code

  • Companion code for "Sample size considerations for comparing dynamic treatment regimens in a sequential multiple-assignment randomized trial with a continuous longitudinal outcome" (ArXiv version)