[denzil_correa]

It’s a standard quality measurement tactic in Internet based surveys. In the list of survey questions, you post a few question which have clear black or white answers. The answers from the survey takers will let you know to further investigate the the survey response. You can then decide to take actions accordingly. Most of the times, you discard.

[Polylactic_acid]

Google had a surveys program where you could earn credits for the google play store and every now and then you would get a trap question usually formatted something like "Have you used x product" or "how well do you know x" where x does not exist. Anyone who answers incorrectly will see limited surveys in the future.

[webmaven]

> Google had a surveys program where you could earn credits for the google play store and every now and then you would get a trap question usually formatted something like "Have you used x product" or "how well do you know x" where x does not exist. Anyone who answers incorrectly will see limited surveys in the future.

Google Rewards still exists, and as recently as a couple of weeks ago had a question in that format (though I am not sure if it was actually a nonexistent brand, and I don't recall enough about the question to look it up now).

[feikname]

Not sure if they stopped using the trick questions or not but they still have the program. You can Download it in your phone from Play Store, it's called Google Rewards.