A sports scientist is investigating whether there is a difference in the post-exercise blood lactate levels of middle-distance runners who wear a newly designed high-tension compression sleeve compared to those who wear standard athletic gear.
Previous literature on the physiological impacts of similar compression garments has yielded highly contradictory and inconclusive results.
Should the hypothesis for this study be directional or non-directional?
Explain your answer.
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.