Collected as part of a survey. Typical questions could ask the extent to which respondents agreed or disagreed with the following statements:
The community of which I am a member treats everybody fairly
Disagreements within the community are usually resolved fairly
Disagreements within the community are usually resolved without violence
Once a conflict has been resolved by community leaders the ruling is usually accepted by all parties to the conflict
For analysis a simpe percentage should be taken of the number of respondents reporting that they agree or strongly agree with the statement(s). 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 it was a representative sample of the population.