selection bias English

Meaning selection bias meaning

What does selection bias mean?

selection bias noun

— The bias introduced by the selection of individuals, groups, or data for analysis in such a way that proper randomization is not achieved, thereby ensuring that the sample obtained is not representative of the population intended to be analyzed.

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News and current affairs

Insurers must also be attentive to a wide array of possible moral hazards - perverse incentives to risky behavior - and to problems of selection bias in attracting clients.