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In observance of the 2024 holiday season, Sage offices will be closed Monday December 23rd through Wednesday January 1st. Normal operations, including shipping for orders placed during the closure, will resume on Thursday January 2nd. For technical support during this time, please visit our technical support page for assistance options. 

We wish you a wonderful holiday season. Thank you. 

Mark Tarrant University of Plymouth, UK

Mark Tarrant is Professor of Psychology at the University of Plymouth, UK. His work focuses on the development and evaluation of group-based behaviour change interventions for supporting health. He has published more than 70 articles and book chapters, including in leading international journals (e.g., Psychological Science, Health Psychology Review), and has been funded by major research councils (e.g., NIHR, MRC, ESRC) and charities (e.g., Stroke Association).