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Society · Guess the stat

How well do you know truth and lying?

Guess the real numbers behind truth and lying, see how everyone else guessed, and get the source.

Guess the statOne tap · see how everyone guessed

Studies of online dating profiles suggest about how many out of 10 users misrepresent their height, weight, or age?

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  • 1 opinion poll
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Truth by the numbers

Real figures with their sources. All Truth facts →

about 6 months old

According to developmental research, humans can begin using deceptive behavior, like crying to get attention, as early as what age?

Even infants learn early on that certain behaviors, like crying or laughing, can be used strategically to get a reaction.

Source: Wikipedia, Lie (2024) en.wikipedia.org

young adults from high rule-breaking societies

A 2016 University of Nottingham study using a dice-rolling game found dishonesty was especially common among which group?

The study linked a country's broader culture of rule-breaking to how likely young adults there were to cheat for personal gain.

Source: Wikipedia, Lie (2016) en.wikipedia.org

claimed 80-90%

Polygraph advocates claim the test is accurate what percentage of the time, though major scientific reviews dispute this?

The U.S. National Research Council found no solid scientific evidence supporting polygraph accuracy at that level.

Source: Wikipedia, Polygraph (2024) en.wikipedia.org

What people think about truth, lying and honesty

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What's the most common reason people tell white lies?

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Questions

How does TruthSurvey.com work?

Each question asks you to guess a real number about truth, lying and honesty. After you answer you see how everyone else guessed, then the real figure and where it comes from.

How is the daily round scored?

Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.

Where do the numbers come from?

Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.

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