Groups of children

N

Mean (SD)

Sig.

Hyperactivity

LBC

447

3.31 (1.94)

t(1055) = 7.849, p = 0.00

Non-LBC

610

2.56 (1.11)

Emotional problems

LBC

443

3.93 (2.40)

t(1046) = 7.310, p = 0.00

Non-LBC

605

3.04 (1.49)

Conduct problems

LBC

445

1.87 (1.92)

t(1050) = 1.899, p = 0.04

Non-LBC

607

1.68 (1.43)

Peer problems

LBC

440

3.48 (1.65)

t(1039) = 5.833, p = 0.00

Non-LBC

601

2.93 (1.35)

Total difficulties

LBC

413

12.55 (5.96)

t(958) = 7.828, p = 0.00

Non-LBC

547

10.17 (3.38)

Prosocial behavior

LBC

450

7.14 (1.90)

t(1070) = 0.368, p = 0.71

Non-LBC

622

7.09 (1.96)