As part of the work to develop core outcome measurement sets for childhood obesity prevention interventions, EPOCH-Translate colleagues, led by Dr Karen Matvienko-Sikar are conducting a survey of trialists with current or previous experience of trials of interventions to prevent childhood obesity and/or improve behaviours related to childhood obesity. The survey examines factors that influence trialists use of core outcome sets and choice of outcome measurement instruments. To take part please click on the link: https://tinyurl.com/2bubhtrf