After you have scanned the external environment surrounding the health issue you want to address, you now understand the drivers and challenges of your potential PSE change initiative. However, you need evidence to support your position. Assess and review available data to determine which specific aspect of the health issue can be potentially resolved or lessened through PSE change. Your state, tribe or territory cancer control plan is a great place to start.
Data can be quantitative or qualitative and can be found in various sources including state and federal surveillance programs and published research. Review quantitative data such as cancer surveillance data for your state, tribe or territory. Look for qualitative data collected through focus groups or key informant interviews as well as anecdotes collected through community meetings and other methods. Seek local-level data to inform your community-based efforts.