A sports scientist wants to compare three different methods of fitness training (methods A, B, and C). She wants to use heart rate (in beats per minute) as an indicator of fitness (ie as the dependent...

A sports scientist wants to compare three different methods of fitness training (methods A, B, and C). She wants to use heart rate (in beats per minute) as an indicator of fitness (ie as the dependent variable), but she knows that physiological measures inherently show high variability. She decides to control for the high variability by using a repeated measures design, and recruits 25 participants for the study. Their baseline heart rates are determined. For three months, they are trained with method A. Their heart rates are then measured, and they are taken off the fitness training regimen for two months. When the two months have elapsed, they are trained for three months with method B, and their heart rates are assessed at the end of this period. The same is done for method C. Data are shown below, as well as output from the SPSS program. Interpret the output.