Table 7 –

Statistical models predicting later child performance from parental production. The models include 335 data points, 32 children with ASD and 35 TD children.

	Child word tokens	Child word types	Child MLU
R2m, R2	R2m = 0.63, R2 = 0.70	R2m = 0.73, R2 = 0.78	R2m = 0.64, R2 = 0.66
Predictor
Intercept	β = 598.42, SE = 22.72, t-stat = 26.33, p < 0.0001	β = 155.51, SE = 4.87, t-stat = 31.95, p < 0.0001	β = 2.24, SE = 0.04, t-stat = 51.70, p < 0.0001
Diagnosis	β = −93.28, SE = 34.19, t-stat = −2.73, p = 0.0089	β = −24.67, SE = 7.30, t-stat = −3.38, p = 0.0013	β = −0.20, SE = 0.07, t-stat = −3.06, p = 0.0029
Mullen expressive language (EL)	β = 10.70, SE = 4.55, t-stat = 2.35, p = 0.023	β = 1.72, SE = 0.97, t-stat = 1.77, p = 0.0814	β = 0.03, SE = 0.01, t-stat = 3.09, p = 0.0026
Diagnosis : EL	β = 12.80, SE = 5.50, t-stat = 2.33, p = 0.0247	β = 3.42, SE = 1.18, t-stat = 2.89, p = 0.0056	β = 0.02, SE = 0.01, t-stat = 2.05, p = 0.0431
Child performance in the previous visit (same index as the outcome)	β = 0.41, SE = 0.05, t-stat = 8.91, p < 0.0001	β = 3.51, SE = 1.18, t-stat = 2.97, p = 0.0045	β = 0.49, SE = 0.05, t-stat = 9.92, p < 0.0001
Parental word tokens in the previous visit	Not Included	Not Included	Not Included
Parental word types in the previous visit	Not Included	Not Included	Not Included
Parental MLU in the previous visit	β = 88.37, SE = 21.59, t-stat = 4.09, p = 0.0001	β = 17.60, SE = 4.74, t-stat = 3.72, p = 0.0002	β = 0.09, SE = 0.04, t-stat = 1.85, p = 0.0809
Random Effects	Child intercept SD: 95.16 Residual SD: 204.95	Child intercept SD: 20.65 Residual SD: 43.34	Child intercept SD: 0.21 Residual SD: 0.37