Biology · A-Level · Edexcel · Edexcel A-level Biology A (Salters-Nuffield) — 9BN0 · Specification point · 1.9 · Lifestyle, Health and Risk
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| Students should: |
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1.9 Be able to evaluate the design of studies used to determine health risk factors, including sample selection and sample size used to collect data that is both valid and reliable. |