Table 2.

Correlation between SMASA, SQS-SVQ and SDQ Mean Scores (n: 1274)

Scale	Total SMASA
	r	p
SDQ—Conduct problems	0.296	< 0.001**
SDQ—Attention deficit	0.111	0.001*
SDQ—Emotional problems	0.345	< 0.001**
SDQ—Peer problems	0.182	< 0.001**
SDQ—Prosocial behaviours	-0.273	< 0.001**
SDQ—Total difficulties index	0.400	< 0.001**
Total SQS	0.133	< 0.001**
SVQ—Sleep efficiency	-0.194	< 0.001**

SMASA: Social Media Addiction Scale for Adolescents, SQS: Sleep Quality Scale, SDQ: Strengths and Difficulties Questionnaire, SVQ: Sleep Variables Questionnaire

r: Pearson correlation coefficient, ^*p < 0.01, ^**p < 0.001