Description: The presenters will describe an ethnographically-informed method of guided discussions developed for use by a multi-project national implementation program. Investigators have developed a method of guided “periodic reflections” to aid in documenting implementation phenomena over time. Reflections are completed as 30–60 minute telephone discussions with implementation team members at monthly or bi-monthly intervals. Periodic reflections show potential as a low-burden method for documenting events across the life cycle of an implementation effort. They also offer an effective means for capturing information on context, unfolding process and sense-making, unexpected events, and diverse viewpoints.