Table 5.

Mean levels and differences in internalizing and externalizing problems across childrens lower and higher in effortful control

	Lower Effortful Control		Higher Effortful Control		t (187)
	M	SD	M	SD
T1 int.	19.71	5.87	17.38	4.25	3.31**
T2 int.	18.33	6.14	15.92	4.56	3.10**
T3 int.	17.29	5.49	15.46	3.96	2.69**
T1 ext.	5.18	3.91	3.71	2.33	3.31**
T2 ext.	4.81	3.54	3.16	1.96	4.00**
T3 ext.	4.34	3.49	2.94	2.22	3.36**

^**p <.01.