Dr Natacha Carragher worked at the National Drug and Alcohol Research Centre from 2008-2015. She is currently Senior Psychometrician at the Office of Medical Education, University of New South Wales. Natacha’s primary research interests involve the use of advanced latent variable modelling techniques and psychometric methods to improve assessment. In particular, she is interested in the classification and structure of psychopathology and comorbidity between internalising and externalising disorders. Her broader research interests include evaluation and assessment of alcohol policies to reduce excessive alcohol consumption and related harms in the general population. Natacha is an Editor for Social Psychiatry and Psychiatric Epidemiology and acts as a consultant for the World Health Organization and Pan American Health Organization.