Table 1:
Subject demographic and IQ data.
| Group | ASD | TD | Comparisons | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Age-Group | Pre-teen (N=14) | Adolescent (N=11) | Pre-teen (N=9) | Adolescent (N=8) | Diagnosis | Age-group | Interaction | |||
| F1,37 | p | F1,37 | p | F1,37 | p | |||||
| TBV (cm3) | 1282.34 (142.04) | 1338.05 (138.07) | 1315.56 (103.71) | 1375.98 (190.42) | 0.609 | 0.44 | 1.622 | 0.211 | 0.003 | 0.959 |
| Age | 9.74 (1.58) | 14.98 (2.41) | 9.68 (1.57) | 14.29 (1.59) | 0.413 | 0.524 | N/A | N/A | 0.291 | 0.593 |
| Verbal IQ | 89.00 (32.87) | 111.00 (28.55) | 118.44 (10.26) | 111.13 (21.13) | 3.751 | 0.06 | 0.925 | 0.342 | 3.688 | 0.06 |
| Non-Verbal IQ | 99.21 (30.87) | 105.36 (9.28) | 110.56 (7.38) | 105.25 (10.47) | 0.832 | 0.367 | 0.005 | 0.946 | 0.866 | 0.358 |
| Total IQ | 94.57 (31.73) | 109.73 (15.02) | 117.00 (8.99) | 109.63 (15.66) | 2.684 | 0.11 | 0.326 | 0.571 | 2.734 | 0.106 |
| ADOS Communication Composite Severity Score | 2.14 (0.949) | 2.09 (0.701) | N/A | N/A | ||||||
| ADOS Social Composite Severity Score | 5.79 (1.48) | 5.64 (1.91) | N/A | N/A | ||||||
Means and standard deviations of group demographic data for age, total brain volume (TBV), verbal, non-verbal, and total IQ scores. ADOS communication and social scores are presented only for ASD individuals, as TD subjects have zero score values. All scores are split across pre-teen and adolescent age groups with ASD and TD diagnostic groups. Comparison columns represent the F-statistics and associated p-values for main effects (Diagnosis, Age-group differences) and Interaction (Diagnosis*Age-group) for ANOVAs testing differences in TBV, verbal, non-verbal, and total IQ scores. The main effect of Age-group was left out for the age difference analysis since the creation of younger and older age groups inherently created groups with statistically difference ages. IQ score differences were tested by Multivariate Analysis of Variance (MANOVA), with each set of scores as dependent variables (DV). All MANOVA statistics were non-significant. Scores listed in the table represent individual statistics for each DV at the univariate level.