Table 3. 2-way ANCOVAs on the variables In CV and Episode Duration, controlling for Developmental Age.

Source	Sum Sq.	d.f.	Mean Sq.	F	P
In CV
Diagnosis	0.03	1	0.03	4.17	0.046
Item	0.16	3	0.05	7.09	0.000
DevAge	0.02	1	0.02	2.80	0.100
Interactions
Diagnosis*Item	0.01	3	0.00	0.28	0.839
Diagnosis*DevAge	0.01	1	0.01	1.49	0.228
Item*DevAge	0.01	3	0.00	0.43	0.734
Error	0.39	52	0.01
Total	0.64	67
Episode Duration
Diagnosis	0.57	1	0.57	7.13	0.010
Item	0.18	3	0.06	0.75	0.525
DevAge	0.17	1	0.17	2.12	0.151
Interactions
Diagnosis*DevAge	0.01	1	0.01	0.14	0.707
Diagnosis*Item	0.14	3	0.05	0.58	0.629
Item*DevAge	0.17	3	0.06	0.70	0.554
Error	4.17	52	0.08
Total	5.50	67

^*lines in bold correspond to significant effects.