Evidence

What it's all about: data, evidence, and ideas. Models of inquiry: some historical background

Ideas, opinions, and evidence

How the natural scientists do it

Who collects the data and how do they do it? Censuses

Data gathered by government employees to document their work

Hired hands and nonscientist data gatherers

Chief investigators and their helpers

Inaccuracies in qualitative research

Afterword: final thoughts.