02058nam a2200289   450000100060000010000410000610100080004720001060005521000270016121500240018822500230021233012850023560600150152060600100153560600100154560600270155560600150158260600150159760600180161260600270163060600130165770000210167070100230169170100210171470100200173585200130175512142  a20201023d2019       y0pory50      ba  aeng  aDirty dozenea concise measure of dark triad traits among at-risk youthsfPedro Pechorro...[et.al.]    a[S.l.]cSpringerd2019  a10 p.d30 cm em PDF  aCurrent Psychology  aThe Dark Triad is a term used to describe a constellation of three socially undesirable personality traits: psychopathy, narcissism, and Machiavellianism. The aim of the present study was to examine the psychometric properties of the Dirty Dozen scale, a brief measure of the Dark Triad, among a sample of 412 at-risk youths from Portugal (M= 13.19 years; SD = 1.41; age range = 12– 17 years), composed of male (n = 200; M= 13.32 years; SD = 1.41 years) and female youths (n = 212; M= 13.08 years; SD =1.41 years). As expected, our translation had a three-factor structure that was invariant across the sexes. Adequate psychometric properties were demonstrated in terms of internal consistency (i.e., Cronbach’s alpha and Omega coefficient), convergent validity (i.e., with measures of self-reported delinquency, and sensation seeking), discriminant validity (i.e., with measures of self-esteem,and self-control), criterion-related validity (i.e., with drug use, and risky sex), and know-groups validity (boys versus girls). We also found that sex differences in self-reported delinquency were partially mediated by sex differences in the Dark Triad traits. Our findings suggest the Dirty Dozen is a valid and useful measure in the study of at-risk for delinquency adolescents  aPSICOLOGIA  aJOVEM  aRISCO  aDELINQUÊNCIA JUVENIL  aPSICOPATIA  aNARCISISMO  aAGRESSIVIDADE  aCOMPORTAMENTO DE RISCO  aPORTUGAL  aPECHORRObPedro   aJONASONbPeter K.   aRAPOSObVanessa   aMAROCObJoão   j159.9PEC