Whitepaper

AI with survey data, GDPR-proof

What language models do well with survey data, where they fail, and how to approve them without data leaking out

  • 14 pages
  • 24 min read
  • English
  • Free

What you get

  • Four AI tasks that work with survey data, and the one that reliably fails
  • Open-ended answers as a variable instead of a summary: codeframe, residual category, sample check
  • What goes to the model when you ask a question of the dataset, and what never does
  • Four operating models from US API to on-premise in one table with six criteria
  • A test protocol that measures AI coding like a human coder
  • A 15-question checklist for approval by data protection and IT

In short

A language model writes, a dataset computes. Whoever keeps to this division of labour gets four things from survey data with AI, reliably: coded open-ended answers, a sentiment per response, a questionnaire draft and an answer to a question put to the weighted dataset. Whoever ignores it and hands a model a PDF to summarise gets invented percentages. This whitepaper describes the use cases that hold up, names the data that flows to a model in each of them, compares four operating models from a US API to your own server, and closes with a 15-question checklist with which data protection and IT can grant approval or refuse it with reasons.

Who it is for
Institutes & agencies · Corporate insights teams · BI & data teams
Format
PDF, 14 pages, with worksheets and checklists

Contents 9 chapters

  1. 01 What AI can do with survey data, and what it cannot
  2. 02 Coding open-ended answers: the most honest use case
  3. 03 Querying data instead of reading reports
  4. 04 The data protection question, asked properly
  5. 05 Four operating models compared
  6. 06 Synthetic respondents and AI interviews: a classification
  7. 07 Measuring quality: checking AI coding like a human coder
  8. 08 Checklist for approval by data protection and IT
  9. 09 Where DataLion fits in

Download the whitepaper

Dr. Benedikt Köhler

The author

Dr. Benedikt Köhler · Co-founder and CEO of DataLion

More than 20 years in software development and statistics. From 2006 to 2009 he led a DFG-funded research project on statistics and visual communication at the Bundeswehr University Munich. The whitepapers come out of projects with institutes, insights teams and universities.

September 2026

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