Selection bias
Selection of individuals, groups or data for analysis such that proper randomization is not achieved
Nº Q284172 ★★
Uncommon · Knowledge
Selection bias
Selection of individuals, groups or data for analysis such that proper randomization is not achieved
Selection bias is the bias introduced by the selection of individuals, groups, or data for analysis in such a way that the association between exposure and outcome among those selected for analysis differs from the association among those eligible. It typically occurs when researchers condition on a factor that is influenced both by the exposure and the outcome (or their causes), creating a false association between them.
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From Wikipedia
Selection bias is the bias introduced by the selection of individuals, groups, or data for analysis in such a way that the association between exposure and outcome among those selected for analysis differs from the association among those eligible. It typically occurs when researchers condition on a factor that is influenced both by the exposure and the outcome (or their causes), creating a false association between them. Selection bias encompasses several forms of bias, including differential loss-to-follow-up, incidence–prevalence bias, volunteer bias, healthy-worker bias, and nonresponse bias.
Text: Wikipédia, CC BY-SA 4.0. ·
