Leads a health psychology research group at the Centre for Outcomes Research and Effectiveness, University College London, studying innovative methods for developing and evaluating behaviour change interventions. This is conducted in two health domains: professional practice (e.g. the implementation of evidence-based guidelines, such as for hand-hygiene amongst hospital staff) and risk factors amongst the general population (e.g. smoking, physical activity, preparing for pandemic flu). Her work addresses how to improve the reporting of behavioural interventions in order to facilitate replication and evidence syntheses (and therefore evidence of effectiveness), and how to link intervention content with theory to further our understanding of causal mechanisms.