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Stichprobenverzerrung
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Eine Stichprobenverzerrung (englisch selection bias, selection effect, oder sampling bias) ist eine statistische Verzerrung bei der Auswahl von Stichprobeneinheiten.
Eine Methode, mit Stichprobenverzerrungen umzugehen, ist die Heckman-Korrektur.
Stichprobenverzerrungen treten beispielsweise durch nicht-zufΓ€llig unterschiedliche Teilnahmebereitschaften von Personen in der empirischen Sozialforschung auf (siehe Schweigeverzerrung, Selbstselektion). Ein anderes Beispiel ist der Survivorship Bias, der auftritt, wenn in einer Erfolg/Misserfolg-Untersuchung nur die Erfolgreichen betrachtet werden.
Contents
β’ Siehe auch
β’ Literatur
β’ Anwendungen
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Siehe auch
Literatur
β’ James Heckman (1979): Sample selection bias as a specification error. Econometrica, 1979, S. 153β161.
Anwendungen
β’ Geddes, Barbara: How the Cases You Choose Affect the Answers You Get: Selection Bias in Comparative Politics, in: Political Analysis 2 (1990), 1, S. 131β150.