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Research methods and skills

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Question 73

Dr. Vance is evaluating the effectiveness of a new wearable biofeedback device designed to reduce occupational stress among high-pressure financial traders. He recruited his sample of traders using a volunteer sampling technique by posting an invitation on an online forum for financial market analysts.

He allocated the volunteers to two conditions:

  • Condition A: The device provides real-time haptic biofeedback (gentle vibrations) during elevated heart rate episodes, guiding the user through deep-breathing exercises.
  • Condition B: The device functions only as a passive monitor, logging heart rate data without alerting the user.

Explain one weakness of Dr. Vance using a volunteer sampling technique for this investigation.

[2]

Research methods and skills Questions

  1. A Level
  2. /Psychology
  3. /Research methods and skills

Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank