TABLE 10.

Test of normal distribution.

	Teacher expertise	Knowledge structure	Teaching ability	Professional development agency
Novice teacher (N = 138)	0.049	0.001	0.002	0.002
Experienced teacher (N = 214)	0.001	0.001	0.001	0.001
Expert teacher (N = 226)	0.002	0.001	0.001	0.001