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| Ex-Ante Policy Appraisal× | Realistická syntéza× | |
|---|---|---|
| Obor≠ | Public Policy | Syntéza důkazů |
| Rodina | Process / pipeline | Process / pipeline |
| Rok vzniku≠ | 2022 | 2005 |
| Tvůrce≠ | Public-finance appraisal tradition; codified by HM Treasury (Green Book) | Ray Pawson (2005) |
| Typ≠ | Structured ex-ante appraisal of policy options | Framework |
| Původní zdroj≠ | HM Treasury (2022). The Green Book: Central Government Guidance on Appraisal and Evaluation. London: HM Treasury. link ↗ | Pawson, R., Greenhalgh, T., Harvey, G., & Walshe, K. (2005). Realist review—a new method of systematic review designed for complex policy and programme evaluation. Journal of Health Services Research & Policy, 10(S1), 21–35. DOI ↗ |
| Další názvy | Policy Appraisal, Options Appraisal, Green Book Appraisal | Realist Review, CMO Configuration, Mechanism-Based Synthesis |
| Příbuzné≠ | 4 | 1 |
| Shrnutí≠ | Ex-ante policy appraisal is the structured assessment of the costs, benefits, risks and trade-offs of alternative options for achieving a policy objective, carried out before a decision is taken. Codified in guidance such as the UK Treasury's Green Book, it provides a disciplined framework for deciding whether to intervene and, if so, how — by establishing the rationale and objectives, generating and narrowing a range of options, appraising each against a counterfactual, and recommending the option that offers best value for public money. Appraisal is the forward-looking complement to ex-post evaluation, which judges interventions after they have run. | Realist synthesis is a theory-driven, interpretive method for evidence synthesis developed by Ray Pawson (2005) that focuses on understanding HOW and WHY interventions work, rather than WHETHER they work. Grounded in realist philosophy, realist synthesis examines Context-Mechanism-Outcome (CMO) configurations: how specific contextual conditions activate mechanisms that produce outcomes. Unlike traditional systematic reviews, which typically answer 'Does intervention X reduce outcome Y?', realist synthesis asks 'Under what conditions, through what mechanisms, for which populations does X work?' This approach is particularly valuable for complex interventions (policies, programs, multi-component treatments) where effectiveness varies dramatically across contexts, and for understanding why interventions succeed in some settings but fail in others. |
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