Formatting Survey Questions – Advice from Dillman
Donald Dillman is probably the most recognized scholar of social science survey research. He has done numerous experiments about the effect of item formats on how people respond to survey items. For instance, in “check all that apply” survey questions, the items at the top get the most responses because respondents stop reading halfway through the list. Changing the list to a series of “Yes No” questions forces respondents to read the entire list and results in better survey data.
The link below takes you to an article authored by Dillman and Christian that reports results from a series of experiments on item formats that can guide us in the best design of survey questions:
You can find many other articles about surveys at Dillman’s website: