Table 1 Means, Standard Deviations, and Correlations between The Study’s Main Variables, Age, Gender, perceptual intelligence and caregiver’s educational level

1. RAD symptoms

–

2. SBS knowledge

−.12

–

3. by primary caregiver

−.30^**

.17

–

4. by teacher

−.12

.07

.18

–

5. compound score

−.28^*

.14

.77^**

.77^**

–

6. Age

−.03

.27^*

−.00

−.06

−.03

–

7. Gender

−.08

.00

−.02

−.08

−.06

.04

–

8. Perceptual intelligence

.04

.55^**

.08

.01

.06

.26

.17

–

9. Caregiver’s educational level

.10

.13

−.23

−.29*

−.34**

−.06

.25

.07

–

Mean

.52

−16.35

6.09

5.47

0

8.75

1

15.24

2.89

Standard Error

.31

7.15

2.49

2.61

1

.97

0

6.85

1.27

N

83

85

82

83

82

83

83

82

75