These sources provide a comprehensive overview of realist evaluation, a theory-driven research framework that investigates how and why specific programs work, for whom, and in what contexts. Unlike traditional methods that focus on average effects, this approach utilizes Context-Mechanism-Outcome (CMO) configurations to understand the underlying human reasoning and environmental factors that drive change. The provided texts include academic lecture notes explaining core principles, a practical case study regarding anti-smoking campaigns in New Zealand, and formal reporting standards from the RAMESES II project. Collectively, they emphasize that social interventions are hypotheses that must be tested by exploring the interaction between program resources and participant responses. The materials highlight that while programs may not be perfectly replicable, the theoretical insights gained regarding their success are highly transferable across different policy environments. This framework aims to move beyond simple "pass or fail" metrics to build a sophisticated evidence base for effective social and health policy.