Pretest your study before
you pay for real participants
Doppelganger runs your Qualtrics survey through AI respondents in minutes — so you catch problems and gauge your effect before you spend on participants.
Free to try · No credit card · Results in minutes
Built by a team from
Cheaper than a pilot
A full AI pretest costs less than a coffee. Save your participant budget for the studies that already show signs of life.
Hours, not weeks
No recruiting, no fielding wait. Catch broken skip logic and dead-on-arrival manipulations the same afternoon you build the survey.
Works with your Qualtrics survey
Point it at an existing survey — branches, conditions, and embedded data included. Your original is never touched.
How it works
Paste your Qualtrics survey
Drop in your survey link. We create an AI-compatible copy automatically — your original stays exactly as it is.
Run a free trial first
Send 3 AI respondents through to confirm everything flows correctly. Scale up to a full pretest once it looks right.
Read the results
Responses land in your Qualtrics Data & Analysis tab, plus a CSV here. See whether the manipulation moved anything before you spend a cent on MTurk.
Doppelganger is a pretesting tool, not a substitute for human data. Use it to catch problems and judge whether an idea is worth fielding — then run the real study with confidence.
What you can pretest today
If your survey is text-based, you can run it through Doppelganger right now. Our AI respondents read and answer written questions — they can't yet see images or watch video.
Works today
- ✓Multiple choice & checkboxes
- ✓Likert scales & matrix / grid questions
- ✓Open-ended text responses
- ✓Demographic & screening questions
- ✓Branching, skip logic & randomized conditions
Not yet
Coming soon- ○Image stimuli (e.g. rating an ad or product photo)
- ○Video stimuli
- ○Audio clips
- ○Interactive tasks — heatmaps, drag-and-drop, sliders
We're building multimodal pretesting — soon your AI respondents will see images and watch video too.
Pricing that fits a research budget
Buy credits up front · 1 credit = 1 AI respondent · A full pretest costs less than a single MTurk pilot.
Start pretesting
No password — we'll email you a secure sign-in link.