방법 비교

	적응형 솔로몬 4군 설계	솔로몬 4집단 설계
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1949 (base design); adaptive adaptation developed through later adaptive trial methodology	1949
창시자	Richard L. Solomon (base design); adaptive extension via response-adaptive randomization methodology	Richard L. Solomon
유형	Experimental design (pretest-sensitization control + adaptive randomization)	True experimental design
원전	Solomon, R. L. (1949). An extension of control group design. Psychological Bulletin, 46(2), 137–150.	Solomon, R. L. (1949). An extension of control group design. Psychological Bulletin, 46(2), 137–150.
별칭	adaptive S4G design, response-adaptive Solomon design, sequential Solomon four-group design, adaptive pretest-sensitization design	Solomon design, four-group design, Solomon four-group control design, S4GD
관련	6	5
요약	The Adaptive Solomon Four-Group Design combines the pretest-sensitization control of Solomon's classic four-group structure with response-adaptive randomization, allowing interim outcome data to update the allocation probabilities across the four groups as the study progresses. This hybrid preserves the design's ability to isolate the testing effect while improving ethical efficiency by steering more participants toward conditions performing better at interim checkpoints.	The Solomon Four-Group Design extends the classic pretest-posttest control-group design by adding two groups that receive no pretest, enabling researchers to detect whether the pretest itself alters participants' responses to the treatment. Introduced by Richard L. Solomon in 1949, it remains the gold standard for isolating the independent effect of a pretest and for obtaining unbiased estimates of treatment efficacy.