plumiExperimental design: Edexcel A‑Level Statistics questions
Every Edexcel A-Level Statistics exam question on R.13 Experimental design, 2018–2025, with its mark scheme and examiner’s report.
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All 7 questions on Experimental design, as a list
- June 2025, Data and Probability, Q7 (12 marks): 7 A trial was carried out to investigate the effect of topical olive oil application on the symptoms of infant colic. A randomised, double‑blind, placebo‑contro
- June 2025, Statistics in Practice, Q5 (19 marks): 5 Oseltamivir is the active ingredient in an antiviral medicine used to treat or prevent influenza (flu). The European Medicines Agency claims that a medicine c
- June 2024, Data and Probability, Q4 (8 marks): 4 Dahlia is running an experiment to investigate whether the consumption of an edible grain, quinoa, reduces blood glucose levels. Dahlia wants to be able to ea
- June 2022, Data and Probability, Q3 (7 marks): 3 In 2011 Boston College psychologists, Angelina Hawley‑Dolan and Ellen Winner, investigated whether paintings of professional abstract artists could be differe
- June 2022, Statistics in Practice, Q1 (9 marks): 1 Following an illness, patients might need therapy in order to help improve their balance. The therapy offered is called standard balance training. Giovanni, a
- November 2020, Statistical Inference, Q6 (17 marks): 6 A formula meal is a calorie controlled drink. The results of a clinical trial were published in September 2018. The trial compared weight loss of adult patien
- June 2019, Data and Probability, Q4 (5 marks): 4 Kayoko wants to investigate whether caffeine intake affects mental arithmetic ability in students at her university. Describe how you would design an experime
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