Surveys


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	Why Is This Important?

	Designing the Survey

	Data Analysis

	Collecting Data

	Sampling Methods

	Bottom Line

	Summary

	Workshop Quiz

Collecting Data		< back		10 of 20		next >


Computer Administration: Pro: Consistent, easy conditional branching, saves on personnel costs Con: May under-represent computer phobic and illiterate. Survey firms may need new personnel, as old timers can't hack it.

The Future: Selection of subjects and interviews via the Internet. Qualified participants are offered rewards and prizes for completing surveys. Won't work though for some populations.
		Telephone Administration: Pro: Cheap, l can recruit random samples easily with random digit dialing. Rapid to administer from a central location. Can answer participant questions. Con: Interviewer can bias the response. Caller ID may bias the sample.