The aim of this study was to explore the relationship between adolescent violence and two personality constructs: self-esteem and lack of self-concern. Other types of delinquent behaviour such as use of alcohol and illicit drugs were also examined. It was hypothesized that adolescents who fought would have lower self-esteem and higher measures of a lack of self-concern than those who did not fight. It was also hypothesized that adolescent fighters would have a greater experience of substance use than non-fighters and that these factors would be inter-related. The survey was of 13,650 pupils (aged 11n16) in a stratified sample from 39 schools in five Local Education Authority areas in Northern England, the Midlands and London. Data were collected during the latter part of 1999. Respondents were asked, in a confidential self-report questionnaire, about their levels of self-esteem and lack of self-concern, their experiences of fighting and their alcohol and illicit drug use. 14.4 per cent of this sample said they had hit someone within the past year. More boys than girls had hit someone in the past year (X≤ = 73.446, df1, p Binary logistic regression was used to develop a model that accounted for 87.2 per cent of the variance with over 96 per cent of those who fought being correctly identified. The model consisted of gender, self-esteem, lack of self-concern, cigarette smoking, illicit drug use, frequency of alcohol use and frequency of drunkenness (G = 2904.274, DF = 13, p Lack of self-concern and low self-esteem are useful constructs in predicting adolescent violence, but cannot be considered in isolation of other behaviours. Research should be encouraged which identifies the causes of low self-esteem in adolescents. (Abstract Adapted from Source: British Journal of Criminology, 2002. Copyright © 2002 by Oxford University Press) England Foreign Countries Juvenile Violence Juvenile Offender Juvenile Self-Esteem Low Self-Esteem Child Violence Child Offender Child Self-Esteem Offender Self-Esteem Offender Characteristics Offender Personality Personality Characteristics Violence Causes Juvenile Behavior Risk Behavior Child Behavior Offender Behavior Late Childhood Late Adolescence Early Adolescence 08-02