plumiEffect size: Edexcel A‑Level Statistics questions
Every Edexcel A-Level Statistics exam question on H.21 Effect size, 2018–2025, with its mark scheme and examiner’s report.
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All 5 questions on Effect size, as a list
- June 2024, Statistical Inference, Q6 (5 marks): 6 Regularly engaging in aerobic exercise is associated with improved asthma control and quality of life for people with mild asthma. Adults with mild asthma are
- June 2023, Statistical Inference, Q6 (4 marks): 6 A study investigated the effects of smartphone displays with blue light on the sleepiness of adults playing smartphone games. [Source: Effects of smartphone u
- June 2022, Statistical Inference, Q3 (8 marks): 3 A study was conducted into whether social media data could be used to understand tourists’ preferences for nature-based experiences. A large number of photogr
- June 2022, Statistics in Practice, Q3 (19 marks): 3 Klazine is a researcher interested in nutrition. She believes that involving a child in preparing their own meal affects what they choose to eat at that meal.
- June 2019, Statistics in Practice, Q2 (3 marks): 2 Antonius is a researcher into the medical condition IBS (Irritable Bowel Syndrome). He surveyed the quality of life of random samples of male and female patie
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