Title: PSYCHOMETRIC PROPERTIES OF THE SPANISH VERSION OF THE PSYCHOPATHY CHECKLIST: YOUTH VERSION Journal: Current Psychology Authors: Anastasiya Ivanova-Serokhvostova*, Beatriz Molinuevo*, Leonor González, Ed L. B. Hilterman, Yolanda Pardo, Vanessa Pera-Guardiola, Albert Bonillo, Iolanda Batalla, Rafael Torrubia, Adelle Forth. *Anastasiya Ivanova-Serokhvostova and Beatriz Molinuevo contributed equally to this work. Affiliations: Corresponding Author: Ivanova-Serokhvostova, Anastasiya, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain. Anastasya.Ivanova@uab.cat Molinuevo, Beatriz, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain. González, Leonor. Department of Justice, Generalitat of Catalonia, Barcelona, Spain. Hilterman, Ed L.B. Justa Mesura, Consultancy & applied research, Barcelona, Spain. Expertise center Forensic Psychiatry, Utrecht, The Netherlands. Pardo, Yolanda. CIBER en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain. Health Service Research Group, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain. Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain. Pera-Guardiola, Vanessa. Child-Juvenile Mental Health Center of Sant Joan de Déu, Lleida, Spain; Biomedical Research Institute (IRB), Lleida, Spain; Department of Medicine, Universitat de Lleida, Lleida, Spain. Bonillo, Albert, Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain. Batalla, Iolanda. Psychiatry Service, Hospital Universitari de Santa Maria. Medicine Department, Universitat de Lleida. Biomedical Research Institute (IRB), Lleida, Spain. Torrubia, Rafael, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain. Forth, Adelle. Department of Psychology, Carleton University, Ottawa, Ontario, Canada. Table S1 Description and reliability indices of the measures used for criterion, convergent and discriminant validity of the PCL:YV Measures Main construct Informant Score # Items Scales used Cronbach’s α (MIC) Sample 2 Youth Psychopathic Psychopathic traits Youth 4-point Likert scale 20 Grandiose-Manipulative .89 (.28) Traits Inventory (YPI; in youth from 1 = Does not 15 Callous-Unemotional .70 (.14) Andershed et al., 2002; apply at all to 15 Impulsive-Irresponsible .72 (.14) authorized Spanish 4 = Applies very well 50 Total score .88 (.13) version by Hilterman et al., 2006). Inventory of Callous- Callous- Youth 4-point Likert scale 24 Total score .79 (.14) Unemotional Traits Unemotional traits from 0 = Not at all Youth Self-Report true to 3 = Definitely (ICU-Y) and Teacher’s true Report (ICU-T; Frick, Social 4-point Likert scale: 24 Total score .91 (.29) 2003; authorized educator from 0 = Not at all Spanish version by true to 3 = Definitely Ezpeleta et al., 2013). true Achenbach System of Psychopathology Youth 3-point Likert scale 13 Anxious/Depressed .76 (.19) Empirically Based from 0 = Not true to 8 Withdrawn/Depressed .55 (.13) Assessment (ASEBA) 2 = Very true or 10 Somatic complaints .79 (.27) school-age instruments often true 11 Social problems .71 (.18) (Achenbach & Rescorla, 12 Thought problems .68 (.15) 2001; Willoughby et al., 9 Attention problems .66 (.18) 2011). 15 Rule-breaking behavior .77 (.18) 17 Aggressive behavior .79 (.18) Social 3-point Likert scale 16 Anxious/Depressed .72 (.14) educator from 0 = Not true to 8 Withdrawn/Depressed .79 (.31) 2 = Very true or 9 Somatic complaints .73 (.23) often true 11 Social problems .69 (.17) 10 Thought problems .44 (.07) 26 Attention problems .91 (.27) 12 Rule-breaking behavior .80 (.25) 20 Aggressive behavior .93 (.38) Reactive and Proactive Reactive and Youth 3-point Likert scale 11 Reactive aggression .69 (.17) Aggression Proactive aggression from 0 = Never to 2 12 Proactive aggression .79 (.24) Questionnaire (RPQ; = Often 23 Total score .86 (.21) Raine et al., 2006; authorized Spanish version Andreu et al., 2009). Sample 3 Antisocial Process Psychopathic traits Youth 3-point Likert scale 7 Narcissism .64 (.21) Screening Device – Self in youths from 0 = Not at all 6 Callous/Unemotional .50 (.14) Report (APSD-SR; true to 2 = Definitely 5 Impulsivity .47 (.15) Frick & Hare, 2001). true 20 Total score .73 (.12) Karolinska Scales of Personality traits Youth 4-point Likert scale 10 Psychic Anxiety .67 (.17) Personality (KSP; Af from 1 = Does not 10 Somatic Anxiety .77 (.25) Klinterberg et al., 1986; apply to 4 = Applies 10 Muscular Tension .79 (.27) authorized Spanish completely) 10 Psychasthenia/Lack of Energy .48 (.08) version Ortet et al., 10 Inhibition of Aggression/Lack of .66 (.16) 2002). Assertiveness 10 Detachment/Distance .26 (.03) 10 Impulsiveness .47 (.08) 10 Monotony Avoidance/Sensation .68 (.18) Seeking .76 (.13) 20 Socialization .43 (.13) 5 Indirect Aggression .68 (.30) 5 Verbal Aggression .42 (.13) 5 Irritability .41 (.12) 5 Suspicion .26 (.07) 5 Guilt .65 (.16) 10 Social Desirability Sensitivity to Individual Youth Yes/No response 24 Sensitivity to Punishment .85 (.19) Punishment and differences of the 24 Sensitivity to Reward .80 (.15) Sensitivity to Reward inhibition systems Questionnaire (SPSRQ; and behavioral Torrubia et al., 2001). approach Note. MIC = Mean interitem correlation. Achenbach, T. M., & Rescorla, L. A. (2001). Manual for the ASEBA School-Age Forms and Profiles. University of Vermont, Research Center for Children, Youth, and Families. Af Klinterberg, B., Schalling, D., & Magnusson, D. (1986). Self-report assessment of personality traits. Data from the KSP Inventory from a representative sample of normal male and female subjects within a developmental project. In Reports from the Project Individual Development and Adjustment (Vol. 64). Andershed, H., Kerr, M., Stattin, H., & Levander, S. (2002). Psychopathic traits in non-referred youths: Initial test of a new assessment tool. In E. Blaauw, J. M. Philippa, K. C. M. P. Ferenschild, & B. van Lodensteijn (Eds.), Psychopaths: Current international perspectives. Elsevier. Andreu, J. M., Peña, M. E., & Ramírez, J. M. (2009). Cuestionario de agresión reactiva y proactiva: Un instrumento de medida de la agresión en adolescentes. Revista de Psicopatología y Psicología Clínica , 14(1), 37–49. Ezpeleta, L., de la Osa, N., Granero, R., Penelo, E., & Domènech, J. M. (2013). Inventory of Callous-Unemotional Traits in a community sample of preschoolers. Journal of Clinical Child and Adolescent Psychology, 42(1), 91–105. https://doi.org/10.1080/15374416.2012.734221 Frick, P., & Hare, R. D. (2001). Antisocial Process Screening Device. Multi-Health Systems. Frick, P. J. (2003). The Inventory of Callous-Unemotional Traits. Unpublished rating scale, University of New Orleans. Hilterman, E., Vallès, L., & Gilaert, L. (2006). Adaptación española del Youth Psychopatic Traits Inventory. Centre d’Estudis Jurídics i Formació Especialitzada. Ortet, G., Ibáñez, M. I., Llerena, A., & Torrubia, R. (2002). The underlying traits of the Karolinska Scales of Personality (KSP). European Journal of Psychological Assessment, 18(2), 139–148. https://doi.org/10.1027//1015-5759.18.2.139 Raine, A., Dodge, K., Loeber, R., Gatzke-Kopp, L., Lynam, D., Reynolds, C., Stouthamer-Loeber, M., & Liu, J. (2006). The Reactive-Proactive Aggression Questionnaire: Differential correlates of reactive and proactive aggression in adolescent boys. Aggressive Behavior, 32(2), 159– 171. https://doi.org/10.1002/ab.20115 Torrubia, R., Àvila, C., Moltó, J., & Caseras, X. (2001). The Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ) as a measure of Gray’s anxiety and impulsivity dimensions. Personality and Individual Differences, 31(1), 837–862. https://doi.org/10.1007/s10589-013-9615-y Willoughby, M. T., Waschbusch, D. A., Moore, G. A., & Propper, C. B. (2011). Using the ASEBA to screen for callous unemotional traits in early childhood: Factor structure, temporal stability, and utility. Journal of Psychopathology and Behavioral Assessment, 33(1), 19–30. https://doi.org/10.1007/s10862-010-9195-4