Understanding your users : a practical guide to user research methods / Courage, Catherine, author.

the methods of data collection in quantitative, qualitative and mixed methods research -- Major

Motion picture producers and directors -- Australia -- Interviews.

: Data gathering methods -- 9. Sampling -- 10. Surveys and questionnaires -- 11. Interviews and focus

methods and errors -- Ch. 10. Causal research: experiments, test markets, and observation methods -- Part