A marine biologist designs a rapid-assessment visual scoring index for amateur citizen-science divers to estimate the bleaching severity of coral reefs.
Briefly explain one method the biologist could use to check the validity of the data obtained from this scoring index.
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.