The
PSI-SF is a 36-item 5-point (1 ¼ strongly agree to 5 ¼ strongly
disagree) parent-report measure that generates a Total Stress score,
the overall level of parenting stress and dysfunctional parenting,
which is the sum of scores on three subscales: Parental Distress
subscale, Dysfunctional ParenteChild Interaction subscale, and
Difficult Child subscale