A team of researchers is conducting an experiment to investigate the effects of sleep deprivation on cognitive performance. Since a large body of previous research consistently shows that lack of sleep impairs performance, the researchers decide to formulate a directional hypothesis.
Explain why a directional hypothesis is appropriate for this study.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) 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.
