Knowledge Base

Guides and research notes on synthetic users, AI personas and faster user research.

Glossary Short, plain definitions of the terms used in synthetic user research.

AI Ad Creative Testing: From Simulated Feedback to a Real Test

Use AI to inspect advertising concepts without mistaking generated ratings for effectiveness. Test comprehension, brand recognition and real outcomes separately.

· 7 min read

AI Focus Groups: Human Discussion or Simulated Interviews?

Understand what AI focus groups actually contain, when group interaction matters and how to use simulated interviews to prepare better human research.

· 7 min read

AI Market Research Tools: How to Choose the Right Evidence

Compare AI research tools by their data, methods and limits. A practical selection guide for human interviews, survey analysis and synthetic respondents.

· 10 min read

AI Persona Generators: What Makes a Persona Useful?

Evaluate AI personas by their evidence, audience coverage and intended use. A practical guide to separating customer facts from generated assumptions.

· 7 min read

AI Survey Tools: Writing Questions, Analysing Answers and Simulating Respondents

Separate three uses of AI in surveys. Learn what to check in a tool, how to pilot a questionnaire and why generated answers do not measure a market.

· 7 min read

Concept Testing Questions: A Questionnaire You Can Adapt

Build a concept test around comprehension, relevance and objections. Original question examples, a worked brief and limits for synthetic responses.

· 8 min read

Concept Testing Tools: Choose the Method Before the Platform

Choose concept testing tools for comprehension, comparison and behavioural validation. A decision matrix, evaluation checklist and worked example.

· 7 min read

How to Write a Synthetic Research Brief That Can Be Checked

An adaptable brief for synthetic research: define the decision, audience, evidence, questions and human follow-up without embedding the desired answer.

· 7 min read

How to Validate Synthetic Research Against Human Evidence

A practical validation protocol: define the target, hold out human answers, compare baselines and separate model stability from predictive accuracy.

· 7 min read

Synthetic Survey Sample Size: Why More Responses Do Not Prove Accuracy

Choose synthetic survey runs by their purpose. Understand model variation, systematic error and why generated sample size is not a human margin of error.

· 7 min read

AI Market Research: What It Actually Replaces (and What It Doesn't)

AI market research runs from AI analysis of human data to fully synthetic respondents. What each approach replaces, what it costs, and where it breaks.

· 16 min read

How Accurate Are Synthetic Respondents? What the Evidence Actually Shows

Synthetic user research is dependable for some questions and misleading for others. What the evidence shows, where critics are right, how to test it.

· 18 min read

What Are Synthetic Personas? A Complete Guide (2026)

Synthetic personas are AI respondents built from real survey data. What they are, how they are built, where they fail, and how to tell a good one from a plausible one.

· 15 min read

Synthetic Users Explained: What They Are, What They Can and Can't Do

Synthetic users are AI-simulated research participants. What they are, how they are generated, where they hold up, and the questions you should never ask them.

· 15 min read