Table 2 Correlations between the RNDA and the BASC-3 for constructs of interest

Hyperactivity

Hyperactive

1 = hyperactive

2 = not hyperactive

− 0.56**

69 (82%)

Aggression

Acts very aggressively towards other people

1 = aggressive

2 = not aggressive

− 0.46**

70 (83%)

Conduct problems

Steals/lies/cheats

1 = conduct problems

2 = no conduct problems

− 0.39*

26 (31%)

Externalising

Hyperactive +

aggression +

conduct problems

0 = no problems

1 = 1 problem

2 = 2 problems

3 = 3 problems

0.52**

70 (83%)

Attention problems

Inattentive

1 = inattentive

2 = not inattentive

− 0.39**

83 (99%)

Atypicality

Shows odd/unusual behaviour

1 = atypical

2 = typical

− 0.25*

83 (99%)

Withdrawal

Acts extremely withdrawn and shy

1 = withdrawn

2 = not withdrawn

− 0.27*

84 (100%)

Behavioural symptoms index (BSI)

Attention problems + atypicality +

withdrawal

0 = no problems

1 = 1 problem

2 = 2 problems

3 = 3 problems

0.35**

84 (100%)

Anxiety

Extreme fear

1 = extreme fear

2 = no extreme fear

− 0.08

67 (80%)

Emotional self-control

Temper tantrums

1 = temper tantrums

2 = no temper tantrums

− 0.52***

70 (83%)