You have the answers. We don't.
Bring a completed consumer study. We’ll run the agreed questions with simulated Americans before seeing your results. You decide how the answers compare.
Your first qualified U.S. consumer Blind Challenge is free. No purchase required.
Put Lewsearch to the test.
Leave your details. We’ll confirm fit and arrange the questionnaire separately. Keep your human results with you.
How the comparison works
Plan the timing
We complete blind validation within 72 hours after receiving all agreed inputs and agreeing on the scoring methods.
We respond to all communications within 24 hours, normally within a few hours during the day.
Share the study setup.
We confirm the questions, audience and scoring method with you.
Receive our predictions.
We deliver the readout before seeing your results.
Compare the results.
You score the agreed questions against your benchmark.
The 50-state benchmark publishes question-level scoring summaries and the selected-set result.
In Issue 01, the two spending estimates were $856.83 and $870.37 against NRF’s $863.86; the scorecard also retains the shopping-timing instrument mismatches.
Questions about the challenge
Is the Blind Challenge free?
Yes. Your first qualified Blind Challenge study is free. There's no obligation to purchase anything afterward.
Do I need to share the human results?
No. You can compare privately after receiving our readout. If you want to discuss the comparison, you can share summary feedback afterward; respondent-level human data is not required.
What do you need to run the study?
After confirming fit, we'll ask for the agreed question wording, answer choices, target-audience criteria, original field dates, and relevant study-design details. Answer choices are the options on the questionnaire. Human answers are the results we must not receive before delivery. Do not include outcome tables, findings, or clues about which concept won.
When does the 72-hour turnaround start?
We complete blind validation within 72 hours after receiving all agreed inputs and agreeing on the scoring methods. The clock starts when both are in place. Keep your human results withheld until you receive our readout.
How quickly will Lewsearch respond?
We respond to all communications within 24 hours, normally within a few hours during the day.
Can I use a study whose results are already public?
Tell us if the results are public, but do not send the result link during blind setup. This is a blind comparison against the results you withhold, not a guarantee that a model has never encountered related public information. An unpublished human benchmark makes the strongest test. We'll discuss whether to proceed and how to label the comparison.
What about focus groups or open-ended studies?
Ask us about fit. Qualitative comparisons need a different evaluation approach; they are not interchangeable with topline accuracy. U.S. consumer multiple-choice studies are the starting point.
What if Lewsearch misses?
That is useful information too. Compare the agreed questions using the agreed method, including the misses. One study can help you judge fit for that use case; it does not establish universal accuracy.
Is this a replacement for human research?
No. Lewsearch uses simulated consumers, not recruited human respondents. This challenge is a way to evaluate where synthetic output may be useful in your workflow.
Will my study become a public case study?
This request does not grant permission to publish your study, results, or company name. Any case study would require separate permission.
What happens after I request a challenge?
We'll review whether your study is a qualified U.S. consumer fit and confirm scope before the run. Your first qualified Blind Challenge is free. Submitting a request does not create a purchase obligation. If you need confidentiality terms, raise that before sharing your instrument.
We can start with your research question.
If you don’t have a completed study to compare, book a demo and we’ll discuss a useful first step.