Table 3 Items for which there was a significant loading DIF as a function of the covariate age
From: Longitudinal change in restricted and repetitive behaviors from 8-36 months
| Item | Loading DIF (SE) |
|---|---|
| Repetitive Motor | |
| Mouthing Objects - mouths, bites, licks, or sucks objects | -0.147 (0.047) |
| Higher-order | |
| Arranging – lines up or arranges toys or other objects | 0.214 (0.043) |
| Placement of objects – insists that things remain in the same place | 0.152 (0.045) |
| Restricted use of media – strongly insists on the same music, book, app, program, movie, etc. | 0.109 (.037) |
| Preoccupation with parts of objects – focuses on parts of objects rather than the whole object | -0.303 (0.074) |
| Visual inspection – closely inspects objects, views toys and other objects from an unusual angle | -0.145 (0.039) |
| Fascination with movement – intense interest or preoccupation with things that move, e.g. fans, clocks) | -0.261 (0.058) |