A cognitive psychologist conducted an experiment to investigate whether the presence of ambient white noise affects short-term memory recall. One group of participants (Group A) was asked to memorize and recall a list of 25 words in a completely silent room. A second group of participants (Group B) was asked to memorize and recall the same list of 25 words in a room with ambient white noise played at 65 dB.
Write an appropriate directional (one-tailed) hypothesis for this experiment.
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.