An occupational psychologist read a study on workplace environments and cognitive performance. She wanted to investigate whether placing indoor plants in offices could improve employees' concentration levels. She decided to conduct an independent groups experiment with 28 call-centre workers, comparing a group working in an office with plants against a group working in an office without plants, using a standardized concentration questionnaire that produces a score from 0 to 100.
Suggest an appropriate statistical test the psychologist could use to analyse the data. Justify your choice of test.
Practise AQA A Level Psychology Inferential testing (A-level only) with exam-style questions for A Level Psychology. 123 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.
