Behavioural science methods are increasingly used to design and evaluate public policies that better reflect human behaviour and decision-making. However, there is a lack of standardisation in selecting and labelling these methods, making it difficult for policy-makers to choose the appropriate one for a specific policy context.

To address this, this working paper proposes guidelines and a visual roadmap, including five key questions to guide the selection of appropriate methods, and seven different experimental or non-experimental methods to choose from. The aim is to provide a simple and practical framework for policy-makers to choose the most fit-for-purpose method for their policy context.