Third, the single interview design was a limitation. Collecting data at multiple time points through longitudinal or pre/post interviews both places less reliance on recall and allows the researcher to observe across interviews the consistency in participant’s accounts of changes experienced, increasing validity. Participant’s ability to recall the ways they engaged with the intervention—sometimes over several years—likely impacted the data. While a longitudinal design would have been preferable, it was not deemed feasible due to the mobile characteristics of the study communities, resource constraints and other factors related to the RCT design. The qualitative study helped offset the recall challenge some as it was designed to capture the sequence of events and relationship changes over time using the participatory timeline tool. And, fourth, to avoid contamination in the RCT mass media (e.g. radio, TV) was not used and our conceptual framework had to be altered to reflect this. Poster exposure proved difficult to classify in the quantitative analysis as they were both displayed in the community and used during some discussion activities. This made it less clear cut what was communication materials/media exposure versus interpersonal communication exposure. While this required the quantitative results to be interpreted with caution, the qualitative data helped to tease this out more.