(English) This is an essay. It expresses the opinions and ideas of some Wikimedians but may not have wide support. This is not policy on Meta, but it may be a policy or guideline on other Wikimedia projects. Feel free to update this page as needed, or use the discussion page to propose major changes.

Systemic bias is any (generally) unintentional bias arising from constraints.

Experimental Bias edit

Examples of experimental systemic bias include observer bias, selection bias and diagnostic bias.

Diagnostic Bias edit

Here the nature or effectiveness of the diagnostic method varies with the variable under test. For example when diagnosing uterine cancer, a common technique for diagnosis has a higher effectiveness in those using oral contraceptives due to the increased probability of breakthrough bleeding.

Personal Bias edit

Examples of personal systemic bias are cultural, notational and infrastructural.

The Systemic Bias of Wikipedia arises from constraints of this project.