 In addition to asking respondents about the challenges they face, interviews with IDA project administrators and staff probe further on challenges such as helping participants attain realistic savings goals, navigating the requirements of diverse funding sources and requirements, raising nonfederal funds, and coping with limited funds for administrative costs. The interviews also explore external factors or special circumstances that may affect project outcomes. This information will be vital both for interpreting the impact analysis findings and for the generalizability of the findings to other sites. It will be fundamentally important to understand why a program has resulted in its estimated effects on participants and whether such effects could be replicated elsewhere. Finally, the interviews give respondents an opportunity to identify intangible outcomes, whether positive or negative, that they feel are significant but that may not be captured in the formal impact analysis, and help identify participant stories to share. 