Table 4.
Parent-report questionnaire data for the Latvia sample
| Whole sample (N = 104) | ASD (N = 35) | Other (N = 40) | None (N = 29) | |
|---|---|---|---|---|
| SQ-A | ||||
| Mean (SD) | 3.36 (2.99) | 5.74 (3.09) | 2.88 (2.12) | 1.1 (1.37) |
| Range | 0–12 | 1–12 | 0–8 | 0–6 |
| Median (IQR) | 3 (4) | 6 (5) | 3 (4) | 1 (2) |
| Cronbach’s | .79 | .77 | .56 | .61‡ |
| MIIC | .2 | .19 | .06 | .12 |
| Correlation with AQ-10 and SDQ (Spearman’s rs) | ||||
|
AQ-10 SDQ |
.72*** .59*** |
.50** .41+ |
.55*** .53** |
.35 .02 |
| AQ-10 | ||||
| Mean (SD) | 5.1 (3.65) | 8.17 (2.3) | 4.83 (3.28) | 1.72 (2.05) |
| Range | 0–10 | 1–10 | 0–10 | 0–8 |
| Median (IQR) | 5 (8) | 9 (3) | 4.5 (6) | 1 (3) |
| SDQ | ||||
| Mean (SD) | 17.4 (7.55) | 21.8 (5.68) | 18.36 (6.68)† | 10.57 (5.92)† |
| Range | 1–33 | 9–33 | 4–28 | 1–22 |
| Median (IQR) | 18 (12) | 22 (7) | 19 (8) | 9.5 (9) |
| Correlation between AQ-10 and SDQ | ||||
| Spearman’s rs | .67*** | .28 | .63*** | .31 |
ASD autism spectrum disorder, AQ-10 Autism Spectrum Quotient-10-Child, MIIC mean inter-item correlation, SDQ Strengths and Difficulties Questionnaire, SQ-A Signposting Questionnaire for Autism
***p < .001; **p < .01; +p = .014 (above corrected threshold p < .01)
†Missing = 1
‡Four items (2, 3, 7 and 13) had zero variance and were therefore removed from the reliability analysis