Nonadherence is a major public health concern but reliable assessment methods are limited. The Medical Adherence Measure (MAM) was designed as a semi-structured clinical interview to elicit comprehensive and accurate responses from patients regarding adherence during the course of standard clinical care. The measure was developed in three phases and administered to 219 pediatric patients (ages 1.3-23) and/or their parents to assess the content, clinical utility, and ease of use. The MAM has three general regimen domains (medication, diet, clinic attendance) and several treatment specific modules. Items assess knowledge of the prescribed regimen, self-reported adherence, organizational ...