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Self-report delinquency scales have contributed greatly to the contemporary basis of our understanding of juvenile delinquency. Nevertheless, they have not been immune to criticism and further improvement and extensive measurement research is still necessary. The present study examined the psychometric properties of one such measure of self-reported delinquency, the Adapted Self-Report Delinquency Scale (ASRDS). The ASRDS was administered to a Portuguese sample of male youths ( N = 470, 12-20 years of age), subdivided into a forensic sample ( n = 217) and a school sample ( n = 253). The Portuguese version of the ASRDS demonstrated satisfactory psychometric properties, in terms of its factor structure, internal consistency, convergent validity, discriminant validity, criterion-related validity, and known-groups validity, thereby justifying its use among this population. [ABSTRACT FROM AUTHOR]

Self-Report Delinquency scales have formed the basis of much understanding of juvenile delinquency today, but further improvement and extensive measurement research on self-report measures of crime are needed. The present study examined the psychometric properties of the shorter general delinquency scale version of the classic commonly used Self-Report of Delinquency (SRD) measure created for the original National Youth Survey (NYS) using a sample (N = 412) of male (n = 200) and female (n = 212) at-risk Portuguese youths. The shorter version of the SRD demonstrated satisfactory validity and reliability, namely in terms of its latent one-factor structure, internal consistency, convergent validity, divergent validity, concurrent criterion validity and discriminant groups validity that overall justifies its use among this population. The shorter general delinquency scale version of the SRD is a valid and reliable measure from a modern psychometric perspective that can be used with at-risk youths. [ABSTRACT FROM AUTHOR]

Sensation seeking is a robust predictor of a wide array of conduct problems that include juvenile delinquency and antisocial behaviors during adolescence and young adulthood. The primary aim of the present study was to adapt the Brief Sensation-Seeking Scale (BSSS) for use in research on youths atrisk for delinquency. With a sample of 412 male and female participants (M = 13.19 years, SD = 1.41) from Portugal, confirmatory factor analysis revealed that the one-factor latent structure of the scale obtained a good fit, and measurement invariance across gender was demonstrated. The BSSS showed mostly good psychometric properties, namely in terms of internal consistency (Cronbach’s alpha and omega coefficient), convergent validity (with delinquent behaviors and dark triad traits of personality), discriminant validity (with self-esteem and self-control), and criterion-related validity (with health-risk behaviors such as drug use, unprotected sex) that overall justifies its use among the adolescent population at risk for delinquency. [ABSTRACT FROM AUTHOR]