Question
Athletes who had suffered brokenlegs were randomly assigned to one of two exercise programs. The first group returned to sports activities in a mean of
Athletes who had suffered brokenlegs were randomly assigned to one of two exercise programs. The first group returned to sports activities in a mean of 61.2 days (with a standard deviation of 24.7 days). The other group returned to sports in a mean of 51.7
days (with a standard deviation of 14.2 days).
1) How might blinding have been used in this experiment?
a) The athletes should be allowed to choose which treatment to engage in.
b) Although the athletes cannot be blinded, the doctors who approve their return to sports should not know which treatment the subject had engaged in.
c) The athletes should not be told that the exercise programs are meant to heal their
brokenlegs.
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