highly significantP < 0.4 × 10 -9
For the whole group of 253 students, the increase in net score means were 7.85% after SR, and 3.95% after CM; both were highly significant: P < 0.4 × 10 -9 for SR and P < 0.1 × 10 -3 for CM.
For the whole group of 253 students, the increase in net score means were 7.85% after SR, and 3.95% after CM; both were highly significant: P < 0.4 × 10 -9 for SR and P < 0.1 × 10 -3 for CM.