Overview
The primary objective of the systematic review (SR) was to identify, assess and synthesize evidence on the effectiveness of feedback, reminders, salience (communication), salience (experience design), and goal-setting interventions conducted in developing countries on environmental and development outcomes. These intervention types were selected as there were a sufficient number of causal studies for meta-analysis. We conducted 12 meta-analyses. Our metaanalysis provided cautious evidence that interventions that deploy feedback and reminders are an effective behavioural approach to improving environmental and development outcomes in developing countries. For the remaining three behavioural science interventions in the SR – goal setting, salience of communication and salience of experience design – more research is required to inform decision-making.