Summary
Contents
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 item-remainder coefficients and Cronbach's alpha) and how to validate a scale, including dimensional validity from factor analysis. User-friendly, the book concludes with a step-by-step account of how to develop a summated rating scale based on classical test theory.
Designing the Scale
Designing the Scale
Construct definition, if properly done, leads easily into the next step of scale design. There are three parts to be completed. First, there are the number and nature of the response choices or anchors. Second, there are the item stems themselves. Finally, there are any special instructions that are to be given to ...
