Table 4.

Associations between Key Measures (simple correlations in lower left and partial correlations controlling for alternate independent variable in upper right quadrant)

Measure	Time-1 ADOS SA	Time-1 MSEL DQ	Time-2 VABS ABC
Time-1 ADOS SA	-	N/A	r = -.10, p = .204
Time-1 MSEL DQ	r = -.59, p = < 0.001	-	r = -.62, p < .001
Time-2 VABS ABC	r = -.48, p = < 0.001	r = .73, p < .001	-

Note: ADOS SA = Autism Diagnostic Observation Schedule Social Affect total algorithm score, MSEL DQ = Mullen Scales of Early Learning Developmental Quotient, VABS ABC = Vineland Adaptive Behaviour Scales Adaptive Behaviour Composite