Measuring self-reliance among refugee and internally displaced households: the development of an index in humanitarian settings Format Abstract Background Humanitarian practitioners have recently expanded their focus from the provision of assistance only to working to ensure refugees and internally displaced peoples (IDPs) can develop sustained ‘self-reliance’. However, few tools measure self-reliance, and even fewer capture non-financial dimensions of self-reliance or measure the construct within refugee and IDP populations. To help address these gaps in measurement and provide organizations with a tool to track households’ self-reliance over time, the Self-Reliance Index (SRI) was developed. The index component of the tool comprises 12 domains of self-reliance, including housing, food, education, healthcare, health status, safety, employment, financial resources, assistance, debt, and savings, and social capital. This paper presents the methodology used to evaluate the tool’s internal consistency and scoring validity, shares the corresponding findings, and offers a practical approach for developing a culturally relevant and robust tool for humanitarian settings.