Avoid items that are likely to be answered the same way by everybody

In rating scales we should avoid statements that are likely to be endorsed by almost everyone or almost no one. In most cases these items are not informative and they are certainly difficult if not impossible to process statistically. Here is a recent example from my own research (Dôrnyei & Clément, 2001): A questionnaire item asked students to rate the international role/importance of six countries, including the United States. As can be imagined, most respondents gave the U.S. the top score. However, as we found out in the analyses, this did not provide enough variance to compute certain statistical results involving this item, and in some cases - when in a particular subgroup (e.g., a school) every single person gave the top score - the computer treated the responses as missing data because of the total lack of variance.

Was this article helpful?

0 0
Online Survey Champion

Online Survey Champion

There are people all over the world trying to find ways to make money online. From stay at home moms looking to make a few extra dollars to college students and entrepreneurs, the allure of making your own hours and working from home or from the local coffee shop is very appealing.

Get My Free Ebook

Post a comment