A marine biology student conducted a laboratory experiment to investigate the effect of water salinity on the activity level of brine shrimp (Artemia salina).
Two groups of 30 brine shrimp each were observed under different conditions:
The student measured the activity level of each brine shrimp by counting the number of swimming strokes completed in a 30-second interval.
Write a non-directional 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.
