Sports scientists designed an investigation to evaluate the impact of a newly developed carbon-fiber running shoe insole on athletic efficiency. They recruited a cohort of 18 competitive middle-distance runners to perform two high-intensity treadmill runs under different treatment conditions:
The rate of oxygen consumption (VO2\text{VO}_2VO2 in ml/kg/min\text{ml/kg/min}ml/kg/min) during the final minute of each run was measured to determine metabolic efficiency. The order of the conditions was counterbalanced across the group, with a 48-hour recovery period between trials.
Explain why the researchers chose to use a repeated measures design 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.
