To examine effectiveness of the KCP for increasing children’s EXERCISE behavior as recorded on pedometers, a 2 4 4 repeated-measures ANOVA was conducted with two study groups (KCP and control), four grades (1st–4th), and four study phases (one month block of pedometer records under baseline conditions, three one-month blocks of pedometer records under reward conditions). EXERCISE was measured as the number of pedometer steps recorded in each month block. Because of the relatively large sample size, we again used a conservative criterion value of p < .01.