手法を比較

	教育研究における粗視化された厳密一致法	粗化完全マッチング（CEM）
分野	因果推論	因果推論
系統	Regression model	Regression model
提唱年	2012	2011-2012
提唱者	Iacus, King, & Porro	Iacus, King, & Porro
種類	Matching / quasi-experimental	Matching / causal inference
原典	Iacus, S. M., King, G., & Porro, G. (2012). Causal inference without balance checking: Coarsened exact matching. Political Analysis, 20(1), 1-24.	Iacus, S. M., King, G., & Porro, G. (2012). Causal Inference without Balance Checking: Coarsened Exact Matching. Political Analysis, 20(1), 1-24.
別名	CEM in education, CEM for educational studies, exact matching education, coarsened matching educational data	CEM, coarsened matching, monotonic imbalance bounding matching
関連	4	6
概要	Coarsened Exact Matching (CEM) is a pre-processing matching strategy that reduces imbalance between treated and comparison groups before outcome analysis. In education research it is used to create balanced comparison groups from administrative records, survey data, or quasi-experimental study designs — for example comparing students who received an intervention against comparable students who did not, without relying on randomisation.	Coarsened Exact Matching is a preprocessing method that achieves covariate balance by temporarily coarsening continuous variables into bins, exactly matching treated and control units within those bins, and then discarding all unmatched units. Introduced by Iacus, King, and Porro (2011, 2012), it bounds imbalance on each covariate independently, yielding a matched sample on which any estimator can be applied without relying on a propensity score model.