The authors behind this experiment are Richard D. Telford, Ross B. Cunningham, Robert Fitzgerald, Lisa S. Olive, Laurence Prosser, Xiaoli Jiang, Rohan M Telford. The basis of the experiment was to find out whether PE (Physical Education) taught by specialist contributed to development academically, along with prevention of obesity in elementary school children. They didn't choose a side, they were just trying to collect data to see the effects. There was no definite hypothesis statement. Prior…
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