Collect data using a survey. Possible question is:
Within the last 6 months have you heard religious leaders within your community teaching in support of: Issues of peace and justice?
For analysis a simpe percentage should be taken of the number of respondents answering 'yes' to the question. Care should be taken in deciding whether this percentage applies to just those surveyed or whether it can be ascribed to the population as a whole. This will depend on the design of the survey and whether or not it was a representative sample of the population.