Dr Evelyn wants to investigate whether there is a difference in cognitive fatigue levels (such as reaction times) when licensed drone operators perform simulated night-time surveillance missions compared to daytime missions. She wants to gather a sample of licensed drone operators aged between 30 and 50 years old with at least 2 years of flight experience.
Describe how Dr Evelyn could use a volunteer sampling technique to obtain a sample for her investigation.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.