An athletic trainer is comparing the efficacy of two recovery protocols following a Grade II hamstring strain. Protocol Alpha involves daily active-release massage therapy for 4 weeks. Protocol Beta involves daily neuromuscular electrical stimulation for 4 weeks with a matched sample of athletes. All athletes in the study are male collegiate track sprinters aged 18 to 21.
At the beginning and at the end of the 4-week recovery period, each athlete's flexibility is measured using a standardised sit-and-reach test (in cm).
Identify one participant variable, other than gender, age, and sport/discipline, on which the athletes should be matched in this study.
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.
