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Education · Guess the stat

How well do you know grades and grading?

Guess the real numbers behind school and college grades, see how everyone else guessed, and get the source.

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Before Princeton adopted grade-deflation guidelines, what share of grades were in the A-range in 2002-2003?

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Grades by the numbers

Real figures with their sources. All Grades facts →

about 0.15 points per decade

Since the 1960s, US college grades have risen at roughly what pace per decade, on a 4.0 GPA scale?

The rise has been gradual but steady, adding up to a substantial shift in average GPAs over the decades.

Source: Wikipedia, Grade inflation (2025) en.wikipedia.org

under 40% (39.7%)

By 2008-2009, after Princeton's grading policy took hold, A-range grades fell below what threshold for the first time?

The policy meaningfully reduced the share of top grades, though Princeton later relaxed the guidelines.

Source: Wikipedia, Grade inflation (2009) en.wikipedia.org

average ACT scores

What has trended downward for many US high schoolers even as their reported grades have risen since 2012?

The gap between rising grades and falling standardized test scores is one of the clearest signs of grade inflation.

Source: Wikipedia, Grade inflation (2025) en.wikipedia.org

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Questions

How does GradeSurvey.com work?

Each question asks you to guess a real number about school and college grades. 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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