Specific objectives are to:

1. Explore the social and ethical considerations relating to the introduction of risk stratification into CRC screening;
2. Explore views and preferences of individuals concerning the introduction of risk stratification into CRC screening and the acceptability of different strategies;
3. Quantify the relative importance to members of the public of different attributes of risk stratified screening programmes;
4. Quantify the potential impact of incorporating a risk stratified approach on uptake of first invitation to CRC screening;
5. Establish the state-of-the-science and future research and policy requirements for incorporating risk stratification into CRC screening programmes.