Group	PreTest	PostTest
Treatment	18	24
Treatment	18	25
Treatment	21	33
Treatment	18	29
Treatment	18	33
Treatment	20	36
Treatment	23	34
Treatment	23	36
Treatment	21	34
Treatment	17	27
Control	18	29
Control	24	29
Control	20	24
Control	18	26
Control	24	38
Control	22	27
Control	15	22
Control	19	31