Baseline &

The 1st course

Baseline &

The 2nd course

Baseline &

The 3^rd course

The 1st course & The 2nd course

The 1st course & The 3^rd course

The 2nd course & The 3^rd course

−2.15

−2.95

−3.77

−.77

−1.12

−0.11

Z value

0.031^#

0.003^##

0.000^###

0.440

0.261

0.091

P value