A cognitive psychologist is investigating whether environmental noise affects working memory capacity. One group of participants completes a digit span test while listening to loud cafe noise (75 dB75\text{ dB}75 dB), while another group completes the same digit span test in a silent room (0 dB0\text{ dB}0 dB).
Write a fully operationalised directional alternative hypothesis for this investigation.
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.
