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The goal for any social scientist conducting a survey is to develop a rating on some attitude, value or opinion a summated rating scale. Aimed at helping researchers construct more effective scales, Spector shows how to determine the number of items necessary, the appropriate amount of response categories and the most productive wording of items. The author discusses how to sort good items from bad (including itemremainder coefficients and Cronbach's alpha) and how to validate a scale, including dimensional validity from factor analysis. Userfriendly, the book concludes with a stepbystep account of how to develop a summated rating scale based on classical test theory.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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