Bias Selection bias Information bias Confounding
Selection Bias A distortion in the relationship between exposure and outcome that results from selection of study participants (those who participate and those who do not participate). Berkson’s bias (admission rate bias ) Neyman bias (prevalence-incidence bias )
Selection bias is 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. Selection Bias
Information Bias Observation bias Measurement bias A distortion in measuring exposure or outcome data that results in different quality (i.e., accuracy or reliability) or frequency of information between comparison groups.
Recall bias Differential recall of exposure between cases and controls in a study Example
- Spring '16
- Congenital disorder, Berkson’s bias