Table 4 Cognitive and behavioral differences between FXS and ASD participants. Asterisks represent statistically significant differences at the 5% level
| Â | FXS | ASD |
|---|---|---|
NVIQ | ||
 Mean ± SD | 62.28 ± 22.52 | 95.90 ± 18.27 |
 ANOVA | F(1,94) = 74.57, p < .001* | |
ABC-C-FX scores | ||
 Composite score (mean ± SD) | 51.84 ± 36.28 | 32.14 ± 22.51 |
 ANOVA | F(1,91) = 10.12, p = .002* | |
 Irritability subscale (mean ± SD) | 16.09 ± 15.20 | 9.65 ± 10.50 |
 ANOVA | F(1,93) = 5.82, p = .018* | |
 Lethargy subscale (mean ± SD) | 8.44 ± 7.18 | 4.88 ± 3.84 |
 ANOVA | F(1,92) = 9.22, p = .003* | |
 Stereotypy subscale (mean ± SD) | 5.96 ± 5.40 | 3.20 ± 2.94 |
 ANOVA | F(1,94) = 9.74, p = .002* | |
 Hyperactivity subscale (mean ± SD) | 11.48 ± 7.75 | 7.84 ± 6.80 |
 ANOVA | F(1,93) = 5.95, p = .017* | |
 Inappropriate speech subscale (mean ± SD) | 5.26 ± 3.64 | 3.06 ± 2.95 |
 ANOVA | F(1,93) = 10.53, p = .002* | |
 Social withdrawal (mean ± SD) | 3.66 ± 3.19 | 3.51 ± 3.39 |
 ANOVA | F(1,94) = .05, p = .825 | |
Vineland-III scores | ||
 Adaptative Behavior Composite score (mean ± SD) | 51.29 ± 23.22 | 71.47 ± 11.59 |
 ANOVA | F(1,78) = 26.66, p < .001* | |
 Communication domain (mean ± SD) | 43.68 ± 21.49 | 71.08 ± 15.36 |
 ANOVA | F(1,78) = 44.16, p < .001* | |
 Daily Living Skills domain (mean ± SD) | 58.74 ± 29.31 | 75.39 ± 13.17 |
 ANOVA | F(1,78) = 12.03, p < .001* | |
 Socialization domain (mean ± SD) | 54.48 ± 23.90 | 72.02 ± 15.80 |
 ANOVA | F(1,78) = 15.64, p < .001* | |