The PCL:SV is a 12-item scale based on the PCL-R, rated by trained observers following a semi-structured interview of the participant. PCL:SV items are scored on a three point scale (0 = absent; 1 = somewhat present; 2 = definitely present) and summed to provide total scores ranging from 0 to 24 points, with a total score > 18 considered indicative of psychopathy in North Americans. The PCL:SV is divided into two factors: the six items from Factor 1 assess a manipulative interpersonal style and deficient affective experience, while the six items from Factor 2 measure an unstable lifestyle and antisocial behavior.
Psychopathy ratings were based on standardized PCL:SV clinical interviews translated into Bulgarian. Assessments with the PCL:SV were conducted by a trained team of research assistants and clinicians at the Bulgarian Addictions Institute. Initial training in psychopathy assessment was provided by JV, who created the authorized version of the Bulgarian PCL-R with its publisher Multi-Health Systems. Training and supervision was further provided by GV, who had participated in formal training workshops led by Dr. Robert Hare. The two trainers have substantial experience with the use of the PCL-R and PCL:SV and with the construct of psychopathy. Training consisted of didactic sessions, case examples, and discussions. Initial ratings of study participants were conducted by pairs of team members, followed by a discussion of item scoring and total scores. Difficult or unusual assessments and instances of discordant ratings between pair members were discussed with supervisors during weekly team meetings.
Psychopathy ratings were based on standardized PCL:SV clinical interviews translated into Bulgarian. Assessments with the PCL:SV were conducted by a trained team of research assistants and clinicians at the Bulgarian Addictions Institute. Initial training in psychopathy assessment was provided by JV, who created the authorized version of the Bulgarian PCL-R with its publisher Multi-Health Systems. Training and supervision was further provided by GV, who had participated in formal training workshops led by Dr. Robert Hare. The two trainers have substantial experience with the use of the PCL-R and PCL:SV and with the construct of psychopathy. Training consisted of didactic sessions, case examples, and discussions. Initial ratings of study participants were conducted by pairs of team members, followed by a discussion of item scoring and total scores. Difficult or unusual assessments and instances of discordant ratings between pair members were discussed with supervisors during weekly team meetings.
