1 paper, 2016–2016 · Unit 3
The Biology IAL Unit 3 — Practical Skills in Biology I past papers in the collection that assess homeostasis, hormones and the nervous system.
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These papers were matched to homeostasis, hormones and the nervous system automatically, by keyword patterns in their questions and mark schemes. A hand-check of 65 randomly chosen matches, read against the source question papers, found 53 that genuinely assess the topic and 12 that do not — 81.5% (95% confidence interval 70.4–89.1%). That is a good way to find practice on a topic, not proof a paper covers it, and a paper missing from this list may still assess it. A separate check found real papers that assess a topic without being tagged for it.
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