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Asking Questions - The Definitive Guide To Questionnaire Design ...

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302 ASKING QUESTIONS<br />

CASES was developed at the University of California, Berkeley,<br />

and is used by several U.S. government agencies, as well as university<br />

research centers.<br />

Ci3 Sawtooth Technologies<br />

Mailing address:<br />

Sawtooth Technologies<br />

1007 Church Street, Suite 402<br />

Evanston, IL 60201<br />

Web site: sawtooth.com<br />

Ci3 is widely used by many smaller research organizations. It is<br />

priced lower than Blaise or CASES and does not contain all the features<br />

that make these other programs attractive to large users.<br />

Many other simpler (and cheaper) programs are available. We<br />

suggest you use Web search engines and the search term computer<br />

questionnaires to obtain additional information.<br />

Web-Assisted Interviewing (WAI)<br />

It is now possible and practical to conduct surveys through the<br />

Web. <strong>The</strong>se surveys have many positives and some negatives as<br />

well. Generally, Web-assisted interviews (WAIs) are considered<br />

easier, more efficient, and less error prone than paper—and even<br />

computer-assisted surveys. However, if researchers are not careful,<br />

WAIs can introduce coverage and sampling errors (Couper,<br />

Traugott, and Lamias, 2001).<br />

Eight main types of Web-based survey methods have been identified:<br />

(1) Web surveys as entertainment, (2) self-selected Web surveys,<br />

(3) volunteer panels of Internet users, (4) intercept surveys,<br />

(5) list-based samples of high-coverage populations, (6) mixedmode<br />

design with choice of completion method, (7) prerecruited<br />

panels of Internet users, and (8) probability samples of full population<br />

(Couper, Traugott, and Lamias, 2001). A brief discussion of the<br />

main benefits and faults of each method follows.

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