Researchers conducted a laboratory experiment to investigate whether selective attention (measured via reaction times on a computerized Stroop task) differs when participants are tested in a hot environment (32°C) compared to a temperate control environment (19°C).
To ensure internal validity, the researchers implemented several control measures, including:
Explain how to improve the effectiveness of the two controls used in the 'Thermal Attention' study.
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.
