De Hoop, ThomasCoombes, AndreaRing, HannahHunt, KelseyRothbard, VictoriaHolla, Chinmaya2023-10-122023-10-122023-10-12Journal of Development Effectiveness1943-9342 (print)1943-9407 (online)https://openknowledge.worldbank.org/handle/10986/40462The papers in this special issue describe evaluations of the scaling journey of five different education programmes operating in humanitarian crises. This introduction first presents the research context for these evaluations followed by a synthesis of the overarching barriers and facilitators to scaling across three domains: (1) context, (2) business model, and (3) advocacy and ownership based on a qualitative synthesis. The synthesis showed that implementers often started multiple pilot projects in different contexts rather than scaling-up in one context. We also present a summary of impacts on learning outcomes from impact evaluations of three of the five education programmes.en-USCC BY-NC-ND 3.0 IGOEDUCATIONREFUGEES’ EVIDENCE SYNTHESISMIXED-METHODSKENYABANGLADESHSUDANJORDANJournal ArticleWorld Bank10.1596/40462