We are testing for a difference between scores of different groups, in this case, the difference between the pressure felt by athletes. The athletes are being tested just once, not being tested more than once. There are three groups (fewer than 6 years, 7–10 years, and more than 10 years of experience). The appropriate test statistic is simple analysis of variance. (By the way, we call one-way analysis of variance “simple” because there is only one way in which the participants are grouped and compared.)
