Source — A negative result on shrinkage estimators in small-N replication

h1 Claim h1

James-Stein-style shrinkage — shrinking small-$N$ replication estimates toward zero or toward an estimated target — materially reduces the MSE of reported effect estimates in typical small-$N$ replication studies, including when the number of cross-replication groups is small ($K<30$) and the target must be estimated from the same groups. Replication status: n/a (hypothesis under test).

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