Assessing the Discriminative Ability and Internal Consistency of the School Outcomes Measure

Table 4

Differences in subscale sum scores by age.

Source (age group)	DF	Type III SS	Mean square	𝐹 value	Pr > 𝐹
Self-care	3	356.8042219	118.9347406	2.72	0.0510
Mobility	3	1608.065248	536.021749	2.41	0.0773
Assuming students role—preschool/elementary	1	57.30158730	57.30158730	0.18	0.6799
Assuming student’s role—secondary	1	120.3333333	120.3333333	0.27	0.6547
Expressing learning—unable to use speech	3	72.67478632	24.22492877	1.55	0.2198
Expresses learning—all students	3	137.3929737	45.7976579	2.58	0.0727
Behavior	3	245.9142424	81.9714141	2.46	0.0708