From: Longitudinal change in restricted and repetitive behaviors from 8-36 months
| Covariate Effect | Estimate (SE) | t | p |
|---|---|---|---|
| Repetitive-Motor | |||
| Factor Mean | |||
| Age | -0.107 (0.017) | -6.334 | 0.000 |
| Factor Variance | |||
| Age | 0.068 (0.023) | 2.908 | 0.004 |
| Self-directed | |||
| Factor Mean | |||
| Age | -0.054 (0.016) | -3.436 | 0.001 |
| . | . | . | |
| Higher-order | |||
| Factor Variance | |||
| Age | 0.043 (0.019) | 2.223 | .026 |