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Predict first, then read

What happened at Duolingo?

Make your call before you read the case. Then see the dated outcome, its source, its grades and the psychology behind it.

Duolingo

Round 1 of 1Make your first call

x
DuolingoReturn
Real case

Duolingo added weekly leagues: you compete on XP against a small group of learners, and the top finishers move up a tier. What happened to overall learning time?

It fell: competition scared casual learners offFlat, though app opens roseIt rose about 5%It rose about 17%

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