Optimizing adherence in HIV prevention product trials: Development and psychometric evaluation of simple tools for screening and adherence counseling.
Elizabeth Ellen TolleyKate Morrow GuthrieSeth ZissetteJoseph L FavaKatherine GillCheryl E LouwPhilip KotzeKrishnaveni ReddyKathleen MacQueenPublished in: PloS one (2018)
These scales are easy and inexpensive to administer, available in several languages, and are applicable regardless of randomization. Once validated prospectively, they could (1) screen for propensity to adhere, (2) target adherence support/counselling, and (3) complement biomarker measures in determining true efficacy of the experimental product.