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Dr Gareth Hollands
EPPI Centre, UCL Social Research Institute
10 Woburn Square
Dr Gareth Hollands profile picture
  • Principal Research Fellow, Evidence Synthesis and Behavioural Science
  • IOE - Social Research Institute
  • UCL Institute of Education

Dr Gareth Hollands is a Principal Research Fellow in Evidence Synthesis and Behavioural Science, based at the EPPI Centre, UCL Social Research Institute. He is also an Honorary Senior Visiting Fellow at the University of Cambridge, where he is an Investigator on Behaviour Change by Design, a Collaborative Award in Science funded by Wellcome.

Gareth completed an undergraduate degree in Experimental Psychology at the University of Oxford, followed by clinical roles in the NHS (in neurological rehabilitation, and early intervention for psychosis) and in HIV/AIDS counselling and research at the University of California San Francisco, USA. He then studied for an MSc at UCL, and a PhD at the Institute of Psychiatry, King’s College London, both in Health Psychology. From 2011-2021 he worked in the Behaviour and Health Research Unit at the University of Cambridge (a Department of Health/NIHR Policy Research Unit until 2019). He joined UCL in 2022.
Research Summary
Gareth’s research contributes to building a cumulative evidence base for scalable interventions to improve population and planetary health, focusing particularly on changing behaviours such as food, alcohol, and tobacco consumption. His work encompasses evidence synthesis; primary research - typically interventional - in field, laboratory, and online settings; and related conceptual and methodological development. 

Specific interests include: 

  • Systematic reviews of intervention effectiveness, particularly those implemented at, or scalable to, population level;
  • Development and evaluation of interventions to change behaviour through altering aspects of physical environments, such as the availability, size, and labelling of products; their underlying mechanisms; and related conceptual work;
  • Advances in evidence synthesis methods across evidence generation (e.g. optimising and automating review processes) and evidence use (e.g. how evidence is interpreted, communicated, and informs decision-making);
  • The impact of communicating risk information in clinical and non-clinical contexts (e.g. warning labels, aversive images, genetic risks)

Links   Google Scholar  |  ORCID  |  Twitter  |  Mastodon

Academic Background
2010 PhD Health Psychology Institute of Psychiatry, King's College London
2005 MSc Health Psychology University College London
2000 MA Oxon Experimental Psychology University of Oxford (St Hugh's College)
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