AQA GCSE Psychology · 8182
Paper 1
Revise: Sampling MethodsRandom selection within each stratum also reduces researcher selection bias.
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GCSE Psychology · key term
A subgroup of a population defined by a shared characteristic, such as an age category. The plural is strata.
Used by AQA
Paper 1
Revise: Sampling MethodsRandom selection within each stratum also reduces researcher selection bias.
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