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Table 4 Parent-report questionnaire data for the Latvia sample

From: Development of the Signposting Questionnaire for Autism (SQ-A): measurement comparison with the 10-item Autism Spectrum Quotient-Child and the Strengths and Difficulties Questionnaire in the UK and Latvia

 

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

  1. 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
  2. ***p < .001; **p < .01; +p = .014 (above corrected threshold p < .01)
  3. †Missing = 1
  4. ‡Four items (2, 3, 7 and 13) had zero variance and were therefore removed from the reliability analysis