Source of change

Sum of squares of deviations from the mean

df

Mean square deviations from the mean

F

p value

Effect of steps measurement

4421.744

2

2210.872

0.282

<0.001^*

Effects of group differences

544.272

1

544.272

5.909

0.018^*

Process-group interaction

649.144

2

324.572

o.588

<0.001^*

Effect of in-group error

1533.111

116

13.216

Effects of intergroup error

5341.922

58

92.102