ABSTRACT

After six chapters of fiddling around with your scale, it should be in pretty good shape by now. Ya think? If you meticulously followed all of the scale construction rules, I predict that the item analysis results in this chapter and the validity and reliability evidence described in the next chapter will attest to the quality of your scale, give or take an item or two. “Why do we have to test out the scale?” Because there is only so much you can do, and you've done it. Waaaay back in chapter 1, like on page 12,1 cited the Standards that have guided this whole scale-construction process. Remember? Me neither. This short-term memory loss is driving me crazy. Anyway, those Standards require real qualitative and quantitative evidence to support the uses and inferences drawn from the rating scale scores (Standards 1.1, 1.6, 1.11, 14.8, and 14.13). You know what that means: It's time to test-drive your scale on real, live, “flesh and blood” people to determine whether the items are any good. Beeee careful!