Recent Publications
McCrystal, P., Percy, A., & Higgins, K., (2007). Frequent Cannabis Use Among 14/15 Year Olds in Northern Ireland. Drug and Alcohol Dependence 88, 19-27.
McCrystal, P., Percy, A., & Higgins, K (2007). Exclusion and Marginalisation: The Experience of School Exclusion on Drug Use and Antisocial Behaviour. Journal of Youth Studies 10 (1).
McCrystal, P., Higgins, K., & Percy, A. (2006). The Cost of Drug Use in Adolescence: Young People, Money and Substance Abuse. Drugs: Education Policy and Prevention 14, 1,1 19-28
McCrystal, P., Percy, A., & Higgins, K (2006). Drug Use amongst young people attending emotional and behavioural difficulty units during adolescence: A longitudinal analysis. Emotional and Behavioural Difficulties 12, 1, 49-68
McCrystal, P., Percy, A., & Higgins, K (2006). Drug Use Patterns and Behaviours of Young People at an Increased Risk of Drug Abuse during Adolescence. International Journal of Drug Policy 17, 393-401
McCrystal, P., Higgins, K., & Percy, A. (2006). School Exclusion Drug Use and Delinquency in Adolescence. Journal of Adolescence 29, 829-836.
Higgins K , Kilpatrick, R. (2005) The impact of Paramilitary Violence against a heroin community in Northern Ireland. A qualitative Analysis. International Journal of Drug Policy 16, 5, 334-342
McCrystal, P., Higgins, K., Percy, A., & Thornton, M. (2005) Adolescent Substance Abuse Among Young People Excluded from School in Belfast. Drugs: Education Policy and Prevention, 12, 101-113.
McCrystal, P., Higgins, K., Percy, A. (2005). Drug use amongst 12 and 13 year olds attending emotional and behavioral difficulty units in Belfast. Emotional and Behavioural Difficulties 10, 3, 203-218.
McCrystal, P., Higgins, K., Percy, A., & Thornton, M. (2005). Substance Abuse among 12 and 13-year old Young People in Belfast at a High Risk of Developing Problem Drug Use, Child care in Practice, 11, 3, 313-322.
Higgins, K Percy, A and Mc Crystal, P. (2004) Secular trends in substance use: The conflict and young people in Northern Ireland. Journal of Social Issues vol 60 no 3 485-506
Percy A, Higgins, K McCrystal, P and Thornton M (2005) Response consistently in adolescent drug use self reports, Addiction 100, 189-196.
Higgins, K Haw, S (2001) HIV and AIDS in the UK in McElrath (ed) HIV and AIDS International Perspectives. Westport, Connecticut USA: Greenwood Press p 235-253
McCrystal P, Higgins, K and Percy, A (2001) Measuring Social Exclusion: A Lifespan Approach. Radical Statistics Winter 01