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GCSE Statistics · key term
A systematic tendency for collected data to favour particular outcomes or viewpoints.
Used by Edexcel
Specification 1a.03, 1d.03, 1d.04, 1d.05, 3p.05, 3p.10 · Paper 1, Paper 2
A systematic tendency in data collection or selection that favours some outcomes and can distort findings.
A systematic tendency for a method of collecting or handling data to favour some outcomes over others.
A larger sample does not automatically remove bias. Improve how participants are selected as well as considering sample size.
A larger sample does not automatically remove bias if the same groups remain under-represented.
Identify a specific source of bias, explain how it could distort the results, then suggest a change that addresses it.
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A systematic tendency for an investigation to give an unrepresentative picture, for example because some groups are under-represented.
A systematic tendency for collected data or results to favour certain outcomes, giving a misleading picture of what is being investigated.
A systematic tendency for results to favour some values or groups over others, making the results unrepresentative.
A systematic tendency for an experimental process to favour some outcomes over those predicted by the intended model.
A tendency for an outcome to occur more or less often than the assumed fair model predicts, rather than differences arising only through chance.