Table 3.
Estimates for Predictors of Visualization and Fluid Reasoning Standard and Growth Scores (n = 41)
| IQ | Growth Scores | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| Fixed Effect | Coefficient | (SE) | p | Coefficient | (SE) | p |
| Visualization Intercept | ||||||
| Intercept (mean) | 2.73 | .52 | < .001* | 474.21 | 2.70 | < .001* |
| Autism Severity | −.18 | .14 | .213 | −.87 | .73 | .236 |
| FMRP | 6.83 | 2.00 | .002* | 38.88 | 10.36 | .001* |
| Environment | −.18 | .45 | .693 | −.99 | 2.32 | .672 |
| Visualization Slope | ||||||
| Age (rate of change) | −.25 | .10 | .020* | .70 | .53 | .198 |
| Autism Severity | −.02 | .02 | .474 | −.12 | .13 | .380 |
| FMRP | .04 | .40 | .929 | .97 | 2.10 | .648 |
| Environment | −.07 | .08 | .405 | −.08 | .42 | .852 |
| Visualization Slope | ||||||
| Age Squared | .03 | .02 | .143 | −.07 | .12 | .542 |
|
| ||||||
| Fluid Reasoning Intercept | ||||||
| Intercept (mean) | 1.46 | .34 | < .001* | 460.73 | 2.70 | < .001* |
| Autism Severity | −.15 | .09 | .109 | −1.35 | .70 | .063 |
| FMRP | 4.94 | 1.30 | .001* | 38.82 | 10.19 | .001* |
| Environment | −.08 | .30 | .791 | −.23 | 2.25 | .919 |
| Fluid Reasoning Slope | ||||||
| Age (rate of change) | −.11 | .07 | .150 | .73 | .75 | .340 |
| Autism Severity | −.01 | .02 | .604 | −.07 | .19 | .692 |
| FMRP | .61 | .28 | .039* | 4.34 | 3.03 | .161 |
| Environment | .04 | .06 | .450 | .35 | .59 | .555 |
| Fluid Reasoning Slope | ||||||
| Age Squared | .01 | .02 | .564 | −.12 | .18 | .498 |
Note. Intercept reflects a chronological age of 14 years. Models estimated with log-transformed FMRP yielded similar results, with the exception of the fact that the positive effect of age for visualization, t(37) = 2.32, p = .026, and fluid reasoning, t(37) = 2.74, p = .010, growth scores was also significant.