The Duolingo English Test is designed to provide a precise and accurate assessment of real world language ability. The test adapts to each person's ability, generating different questions for every exam and making it impossible to memorize them all.
Duolingo English Test scores are significantly correlated with the TOEFL iBT (a standardized English test). Read the validity study here for a comparison of Duolingo English Test scores with scales from other common language tests.
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