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Addictions Department Staff

Dr Clare J Mackie




Tel: 0207 848 0664



Clare Mackie is a lecturer at the Addictions Department, Institute of Psychiatry, Psychology & Neuroscience IoPPN). Clare studied Psychology and Child Development at Bangor University and the Institute of Education, graduating with a PhD in Psychology and Education from the University of Warwick. She then became a MRC/ESRC Interdisciplinary Postdoctoral Research Fellow at the Institute of Psychiatry. She has held grants from the ESRC, the European Foundation for Alcohol Research and the Institute of Social Psychiatry.



Clare’s research interests focus on the onset and development of substance use in adolescents and their psychiatric comorbidity. In particular, the impact of early onset psychotic experiences on subsequent substance use, and the relative role of risk and resilience in the development of adolescent substance use.


Publications (2008 - 2013):


O’Leary-Barrett, M., Topper, L., Al-Khudhairy, N., Pihl, R.O., Castellanos-Ryan, N., Mackie, C.J., Conrod, P.J. (2013). Two-year impact on internalising and externalising problems in youth: a randomised controlled trial of brief, personality-targeted, teacher-delivered interventions. Journal of the American Academy of Child Psychology and Psychiatry, 52, 911-920

Mackie CJ, O’Leary-Barrett M, Al-Khudhairy N, Castellanos-Ryan, N., Struve M, Topper L, & Conrod PJ. (2013). Adolescent bullying, cannabis use and emerging psychotic experiences: a longitudinal general population study. Psychological Medicine, 43, 1033-1044.

Conrod PJ, O’Leary-Barrett M., Newton N, Topper L., Castellanos-Ryan N, & Mackie CJ. (2013). Effectiveness of a selective, personality-targeted prevention program for adolescent alcohol use and misuse: a cluster randomised controlled trial. JAMA Psychiatry, 70, 334-342.

Mackie CJ, Castellanos-Ryan N, & Conrod PJ. (2011). Developmental trajectories of psychotic-like experiences: impact of victimisation and substance use. Psychological Medicine, 41, 47-58.

Mackie CJ, Conrod PJ, Rijsdijk F & Eley TC. (2011). A systematic evaluation and validation of subtypes of adolescent alcohol use motives: Genetic and environmental contributions. Alcoholism: Clinical and Experimental Research, 35, 420-430.

Mackie CJ, Castellanos-Ryan N, & Conrod PJ. (2011). Personality moderates the longitudinal relationship between psychological symptoms and alcohol use in adolescents. Alcoholism: Clinical and Experimental Research, 35, 703-716.

Conrod P, Castellanos-Ryan N & Mackie CJ. (2011). Long-term effects of a personality-targeted intervention to reduce alcohol use in adolescents. Journal of Consulting and Clinical Psychology, 71, 296-306.

Topper L, Castellanos-Ryan N, Mackie CJ, & Conrod PJ. (2011). The effect of adolescent bullying victimisation on alcohol use and coping motives for drinking. Addictive Behaviors, 36, 6-13.

O’Leary-Barrett M, Mackie CJ, Castellanos-Ryan N, Al-Khudhairy N, & Conrod PJ (2010). Personality-targeted interventions delay uptake of drinking and decrease risk of alcohol-related problems when delivered by teachers. Journal of the American Academy of Child and Adolescent Psychiatry, 49, 954–963.

Conrod PJ, Castellanos N, & Mackie CJ. (2008). Personality-targeted interventions delay the growth of adolescent drinking and binge drinking. Journal of Child Psychology and Psychiatry, 49, 181-190.

Lindsay G, Dockrell J, & Mackie C.J. (2008). Vulnerability to bullying and impaired social relationships in children with Specific Language Impairment. European Journal of Special Educational Needs, 23, 1-16.

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