Highlights
A discriminant analysis model of psychosocial
factors was devised to differentiate between PIU and CUD.
Compared to the control group, the PIU group had
higher scores on motor, attentional and non-planning impulsiveness;
tolerance of frustration, emotional pain, and ambiguity; negative
and positive metacognitions, need to control thoughts, and cognitive
confidence; and RNT.
Compared to the control group, the CUD group had
lower scores on family and significant other support; and had higher
scores on motor and non-planning impulsiveness; tolerance of
frustration, emotional pain, and ambiguity; suppression; need to
control thoughts; and RNT.
Social support, tolerance of physical discomfort,
reappraisal, and cognitive confidence play a significant role in
discriminating PIU and CUD.
The classification analysis results showed that
68.8% of the control group, 70.8% of the PIU group, and 81.3% of the
CUD group were correctly classified in their respective groups based
on the predictor variables.