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GCSE Chemistry · key term
A result that does not fit the pattern shown by the other results.
Used by AQA, Edexcel and OCR
Specification 4.3.1.4 · Paper 1
A result that does not fit the pattern of the other results and may have arisen from an experimental problem.
Revise: Measurement UncertaintyTaking suitable repeat measurements gives more information about their distribution and makes an anomalous result easier to recognise than relying on a single reading.
Paper 1, Paper 2
A result that differs markedly from the pattern of the other results.
A result lying unexpectedly far from the overall pattern of the other results.
Specification CM5.2ii, CM6.3i · Paper 2 (Foundation), Paper 4 (Higher)
A result that lies noticeably outside the pattern shown by the other results.
A plotted value that does not fit the pattern shown by most of the other values.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Do not assume that every set contains an anomalous result. Exclude a value only when there is a sound reason to regard it as anomalous.
Do not say that repeats improve accuracy. Repeats help to reveal anomalous results and allow a mean to be calculated, making the evidence more reliable.
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