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Edexcel A-Level Biology AS 1.16 Study Design for Health Risk Factors Questions

Practise designing health-risk questionnaires and trials, controlling confounders, judging validity and reliability, and selecting samples or measurements with marked evidence.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Design a questionnaire or trial with justified variables, controls and sampling choices.
  • Evaluate validity through confounding factors, selection bias and measurement quality.
  • Evaluate reliability through sample size, replication and consistency of results.

Edexcel A-Level Biology AS 1.16 Study Design for Health Risk Factors Questions question 1

[Maximum number: 3]

Several factors increase the risk of cardiovascular disease (CVD).

Dietary antioxidants may reduce the risk of CVD.

Devise a study to confirm that antioxidants reduce the risk of CVD.

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