手法を比較

	逆サンプリング	逐次分析（群逐次計画）
分野	標本抽出	統計学
系統	Process / pipeline	Hypothesis test
提唱年	1945	1977
提唱者	John Burdon Sanderson Haldane	P. C. O'Brien & T. R. Fleming; P. C. Pocock
種類	Sequential sampling method	Sequential / adaptive hypothesis test
原典	Haldane, J. B. S. (1945). On a method of estimating frequencies. Biometrika, 33(3), 222–224.	O'Brien, P.C. & Fleming, T.R. (1979). A Multiple Testing Procedure for Clinical Trials. Biometrics, 35(3), 549–556.
別名	Sequential Sampling	sequential testing, group sequential design, interim analysis, Sıralı Analiz (Sequential Testing / Group Sequential Design)
関連	3	5
概要	Inverse Sampling is a sequential sampling strategy where sampling continues until a fixed number of occurrences of a rare event or item of interest is observed. Introduced by J. B. S. Haldane in 1945, it is particularly efficient for estimating rare event probabilities or proportions when the target is sparse and costly to detect.	Sequential analysis is a framework for conducting hypothesis tests with pre-planned interim looks at accumulating data, allowing a study to stop early for efficacy or futility while controlling the overall Type I error rate. The group sequential approach was formalised by Pocock (1977) and O'Brien and Fleming (1979), and remains the standard for confirmatory clinical trials and rigorous A/B experiments.