1. Psychopathy Checklist-Revised (PCL-R)
A diagnostic tool used to measure psychopathic traits in adults. It consists of 20 items that are scored on a 3-point scale, with higher scores indicating more psychopathic traits.
2. The Short Screening Version of the Pcl-R (PCL:SV)
A shortened version of the PCL-R that only includes 10 items. It is used to screen for psychopathic traits in adults and has been found to be as accurate as the full PCL-R.
3. The General Factor of Psychopathy (GFP)
A measure of overall psychopathic tendencies and was developed from the PCL-R. It consists of 4 factors: affective, interpersonal, lifestyle, and antisocial.
4. Antisocial Process Screening Device (APSD)
A screening tool for antisocial behaviour in children and adolescents. It consists of 10 items that are scored on a 3-point scale, with higher scores indicating more antisocial behaviour.
5. Youth Psychopathic Traits Inventory (YPI)
A measure of psychopathic traits in children and adolescents aged 8 to 18 years. It consists of 36 items that are scored on a 5-point scale, with higher scores indicating more psychopathic traits.
6. Children’s Aggression Questionnaire (CAQ)
A measure of aggression in children and adolescents aged 3 to 18 years. It consists of 45 items that are scored on a 5-point scale, with higher scores indicating more aggression.
7. Barrett Impulsiveness Scale – Children’s Version (BIS-C)
A measure of impulsiveness in children aged 6 to 12 years old. It consists of 18 items that are scored on a 4-point scale, with higher scores indicating more impulsiveness.
8. Bright Future Scale
A measure of optimistic thinking in children aged 9 to 16 years old. It consists of 20 items that are scored on a 5-point scale, with higher scores indicating more optimistic thinking.
9. Child Symptom Inventory 4
A measure of psychological distress in children aged 4 to 18 years old. It consists of 174 items that are scored on a 3-point scale, with higher scores indicating more psychological distress.