PSV-7320 v3

Faulkner, S. S., & Faulkner, C. A. (2019). Research methods for social workers : A practice-based approach (3rd ed). Oxford University Press. https://search.ebscohost.com/login.aspx?direct=true&AuthType=sso&db=nlebk&AN=1854272&site=ehost-live&scope=site&custid=natuniv
Read Chapter 8. This is about questionnaire design (first part of the chapter, pp. 111 - 121).

Krosnick, J. A. (2009). Question and questionnaire design. In J. D. Wright and P. V. Marsden (Eds). Handbook of Survey Research (2nd Edition). Elsevier. https://web.stanford.edu/dept/communication/faculty/krosnick/docs/2009/2009_handbook_krosnick.pdf
This source explains the meaning of “don’t know” questions and the use of those, the difficulty with choosing the correct number of points added for a Likert-type scale, and the problems with order effects in questionnaire design.