مقایسهٔ روشها
روشهای انتخابی خود را کنار هم مرور کنید؛ ردیفهای متفاوت برجسته شدهاند.
| آزمون پلاسیبو برای اثرات ناهمگن درمان× | روش تفاوت در تفاوت (Diff-in-Diff)× | |
|---|---|---|
| حوزه≠ | استنتاج علّی | اقتصادسنجی |
| خانواده | Regression model | Regression model |
| سال پیدایش≠ | 2000s–2010s | 1994 |
| پدیدآور≠ | Rosenbaum (placebo test concept); Athey & Imbens (HTE estimation framework) | Card & Krueger (canonical 1994 application); Angrist & Pischke (textbook treatment) |
| نوع≠ | Validation / falsification test | Causal inference / panel regression |
| منبع بنیادین≠ | Imbens, G. W., & Rubin, D. B. (2015). Causal Inference for Statistics, Social, and Biomedical Sciences: An Introduction. Cambridge University Press. ISBN: 978-0521885881 | Angrist, J. D., & Pischke, J.-S. (2009). Mostly Harmless Econometrics: An Empiricist's Companion. Princeton University Press. ISBN: 978-0691120355 |
| نامهای دیگر≠ | HTE placebo test, heterogeneous-effect placebo check, subgroup placebo test, CATE placebo validation | diff-in-diff, DiD, Farkların Farkı (Diff-in-Diff) |
| مرتبط≠ | 3 | 5 |
| خلاصه≠ | A placebo test for heterogeneous treatment effects is a falsification strategy used to validate whether estimated variation in treatment effects across subgroups or covariate values is genuine rather than an artifact of model specification, overfitting, or coincidental patterns. By applying the same estimation procedure to pseudo-treatments, fake outcomes, or subgroups that logically should not differ, researchers check that observed heterogeneity reflects real causal variation. | Difference-in-Differences is a causal-inference method that estimates the effect of an intervention by comparing how a treatment group and a control group change over time. Made famous by Card and Krueger's 1994 minimum-wage study and developed in Angrist and Pischke's Mostly Harmless Econometrics, it isolates the treatment effect as the difference between the two groups' before-after changes. |
| ScholarGateمجموعهداده ↗ |
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