IA	Internet addiction
CIAS	Chen Internet Addiction Scale
GASA	Game Addiction Scale for Adolescents
SMDS	The Social Media Disorder Scale
PSQI	Pittsburgh Sleep Quality Index
PDSS	Pediatric Daytime Sleepiness Scale
IGA	Internet game addiction
MIU	maladaptive Internet use
ADHD	attention deficit–hyperactivity disorder
SMA	social media addiction
SD	standard deviation
CFI	comparative fit index
TLI	Tucker–Lewis index
RMSEA	root mean square error of approximation
CI	confidence interval