The investigators will conduct block randomization based on two categories of electronic adherence: 85% or above versus < 85%. All participants will have exhibited some non-adherence in order to be eligible for the study, although they may vary in the extent of non-adherence. Because insufficient information is known about the range of non-adherence in the population to determine the most valid non-adherence cut-off points, the investigators may need to reconsider adherence categories over the course of the pilot study. The investigators will regularly examine the data to determine whether finer adherence categories are needed, and the investigators will adjust the categories if such a determination is made.