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Scientific processes

Scientific processes

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Question 115

Scenario

A research institute is investigating the combined effects of moderate sleep deprivation and high-altitude hypoxia on the emergency decision-making of high-speed rail operators. They recruit a sample of 18 licensed operators to perform emergency braking simulations in a high-fidelity rail cabin simulator.

Each operator completes two simulated emergency trials in a counterbalanced order:

  • Trial Alpha: Completed after 24 hours of continuous wakefulness while inside a normobaric hypoxia chamber containing 14% oxygen (simulating an altitude of approximately 3,500 metres).
  • Trial Beta: Completed after a standard 8-hour sleep cycle while breathing normal room air (21% oxygen).

Explain one or more ethical issues that the researchers must consider when designing and conducting this study.

[4]
Markscheme

Scientific processes Questions

  1. A Level
  2. /Psychology
  3. /Scientific processes

689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.

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