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	Metoda Difference-in-Differences w badaniach edukacyjnych	Dopasowanie wyników skłonności
Dziedzina	Wnioskowanie przyczynowe	Statystyka w badaniach
Rodzina	Regression model	Process / pipeline
Rok powstania	1990s–2000s	1983
Twórca	Dynarski, Card, Angrist, and colleagues — applied in education economics from the 1990s onward	Paul Rosenbaum and Donald Rubin
Typ	Quasi-experimental causal inference	Method
Źródło pierwotne	Dynarski, S. M. (2003). Does Aid Matter? Measuring the Effect of Student Aid on College Attendance and Completion. American Economic Review, 93(1), 279-288.	Rosenbaum, P. R., & Rubin, D. B. (1983). The central role of the propensity score in observational studies for causal effects. Biometrika, 70(1), 41–55.
Inne nazwy	DiD in education, education DiD, quasi-experimental education design, education policy DiD	PSM, propensity score weighting, covariate balance
Pokrewne	5	3
Podsumowanie	Difference-in-Differences (DiD) in education research applies the classic quasi-experimental DiD estimator to evaluate education policies, programs, and reforms. Researchers compare changes in student, school, or district outcomes between a group exposed to an intervention and a comparable unexposed group across pre- and post-intervention periods, isolating policy effects from background trends.	Propensity score matching (PSM) is a method for reducing confounding bias in observational studies by balancing baseline characteristics between treatment groups, simulating randomization. Developed by Rosenbaum and Rubin (1983), it estimates the probability of receiving treatment given observed covariates, then matches or weights treated and control individuals with similar treatment probabilities. Widely used in medicine, epidemiology, and policy evaluation when randomized trials are infeasible or unethical, enabling estimation of treatment effects while controlling for selection bias.