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| Bias (Epidemiology) Aggregation Bias | Bias, Aggregation | Bias, Ecological | Bias, Statistical | Bias, Systematic | Ecological Bias | Outcome Measurement Errors | Statistical Bias | Systematic Bias | Bias | Bias, Epidemiologic | Biases | Biases, Ecological Any deviation of results or inferences from the truth, or processes leading to such deviation. Bias can result from several sources: one-sided or systematic variations in measurement from the true value (systematic error); flaws in study design; deviation of inferences, interpretations, or analyses based on flawed data or data collection; etc. There is no sense of prejudice or subjectivity implied in the assessment of bias under these conditions. |