Questionnaire vs survey
People use the two words interchangeably, but they name different things — and the difference matters for how you design, title and talk about your work.
The short version
A questionnaire is the set of questions — the instrument respondents see and answer. A survey is the entire research process: defining the population, choosing a sample, distributing the questionnaire, collecting responses, analyzing data and reporting findings.
Survey: "everything from sampling 500 commuters to publishing the report"
The practical test: if individual answers matter, you are running a questionnaire. If only the aggregate matters, you are running a survey. A doctor reading your intake form cares about your answers; a researcher computing average commute times cares about the pattern across hundreds.
Three types of questionnaires
Questionnaires come in three structural flavors, and the flavor shapes both the questions and the title:
| Type | What it is | Title cue |
|---|---|---|
| Structured | Fixed questions with predefined answers (multiple choice, scales, yes/no). Everyone sees the same thing, so answers are comparable. | "Questionnaire", "Assessment" |
| Unstructured | Open-ended questions answered in the respondent's own words. Rich answers, hard to compare. | "Tell us", "Share your thoughts" |
| Semi-structured | A mix — fixed questions for countable facts, open questions where variation matters. Most real questionnaires land here. | "Feedback Questionnaire" |
Structured questionnaires suit anything you plan to count; unstructured ones suit exploration, when you do not yet know what the categories should be.
What a survey adds
A survey wraps the questionnaire in methodology:
- Sampling — who gets asked, and how many people you need for the result to mean something.
- Distribution — email, link, embedded form, in person, phone.
- Collection — gathering responses over a defined window.
- Analysis — turning hundreds of individual answers into findings.
- Reporting — the write-up that decision-makers actually read.
This is why "survey" titles often sound bigger than "questionnaire" titles: they promise insight, not just questions.
How it changes your title
- Use "questionnaire" when the focus is the form itself: "Customer Feedback Questionnaire", "Intake Questionnaire". It sets the expectation of answering questions.
- Use "survey" when the focus is the study: "2026 Employee Engagement Survey", "National Commuting Survey". It signals scope and seriousness.
- In academic writing, be precise: the questionnaire is your instrument (described in methods), the survey is your design. Reviewers notice the difference.
- For participants, "questionnaire" can feel lighter and quicker than "survey" — a small framing choice that can nudge completion.
Title both correctly: the QueryCraft generator produces titles using each term in its proper place — pick your questionnaire type and tone, and compare.