Market Research: Foundations to Practice · Writing Unbiased Survey Questions
Double-Barreled and Ambiguous Questions
A single question asking about two things at once produces data that can't actually be interpreted. This chapter covers this and other structural clarity problems.
A double-barreled question asks about two distinct things within a single question, such as 'How satisfied are you with our product's quality and price?', which forces a respondent who feels differently about quality than about price to somehow collapse two separate judgments into one answer, producing a response that cannot be meaningfully interpreted as reflecting either dimension specifically [8].
Key Takeaways
- A double-barreled question asks about two distinct things at once, producing an answer that can't be interpreted as reflecting either dimension specifically.
- The fix is splitting every 'and'/'or' compound question into separate, single-concept questions with individually interpretable answers.
- Jargon and technical terms force respondents to guess or skip, degrading data quality unless the population is verified to be familiar with the terms.
- Vague quantifiers like 'often' mean different things to different respondents; specific, defined frequency ranges produce genuinely comparable data.