ARTICLES
Articles
Professional articles on questionnaire design, data quality, data collection channels and survey experiments.
Designing questionnaires for mobile: why we start with the small screen
Most people answer online surveys on their phones. A questionnaire designed for a desktop and adapted for mobile afterwards loses respondents and hurts answer quality. The principles we apply to every questionnaire.
ReadPlanning the way into a survey: the message, the link and the first screen
Before the first question, a respondent sees a message and a link, and that is where they decide whether to open it. What to plan at this stage, and how it affects response rates and sample quality.
ReadQuality control in online surveys: making sure the answers are real
Bots, duplicate entries and respondents who answer without reading. What is checked before fieldwork, during it and after it, so every number in the report rests on real answers.
ReadSurveys by text message and WhatsApp: when it is the right channel
A message on the phone is almost always opened, and faster than an email. But a short channel calls for a short questionnaire, suitable wording and attention to trust. When the channel fits, and how to work with it properly.
ReadExperiments inside surveys: measuring influence instead of self-report
Ask people what would influence them and the answer is not always reliable. A survey experiment measures what actually works, when each respondent sees only one version and does not know others exist.
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