Table 5.

Factor loadings for CSESA sample

APERS domains	With clustering	Ignoring clustering
Learning environment structure/schedule	0.71	0.62
Positive learning climate	0.60	0.63
Assessment/IEP development	0.49	0.61
Curriculum and instruction	0.83	0.89
Communication	0.68	0.77
Social	0.26	0.61
Personal independence and competence	0.69	0.75
Functional behavior (interfering and adaptive)	0.72	0.63
Family involvement	0.40	0.50
Teaming	0.43	0.59
Model fit
Degrees of freedom	70	35
Chi square	152.74 p = .0000	70.21 p = .0004
RMSEA	.11	.10
CFI	.83	.92