Answer 16 quick Read & Select questions — is it a real English word? — that adapt to your level, harder as you get them right. Get your estimated DET score out of 160 and a week-by-week plan.
Answer 16 Read & Select words — for each one, decide whether it is a real English word. The words adapt to your level as you go. About 5 to 8 minutes, no signup.
See your estimated DET score on the real 10–160 scale, plus how many real words you spotted and how many invented words you rejected.
Get a personalised study plan that builds your vocabulary breadth first, then trains every DET task type on a week-by-week path to your goal.
The diagnostic uses Read & Select, the signature Duolingo English Test task, where you decide whether a single word is a real English word. It is one of the strongest signals of your vocabulary breadth, which tracks closely with overall DET performance, and it is auto-gradable, so you get an instant, honest estimate. The words adapt to your answers — harder when you are doing well, easier when you are not — and your accuracy is converted to the real DET scale of 10 to 160. Your study plan then builds in the other DET task types, like Listen & Type, Read & Complete and Listen & Select.
Yes. Taking the diagnostic and seeing your estimated DET score is completely free, with no account required. You only create a free account if you want to save your personalised plan and start studying.
About 5 to 8 minutes — 16 quick Read & Select questions where you decide whether each word is a real English word, adapting to your level as you go.
The Read & Select words adapt to your answers — harder when you are doing well, easier when you are not — and your accuracy is converted to the real Duolingo English Test scale, which runs from 10 to 160.
Read & Select is the signature DET task and a strong signal of vocabulary breadth, which correlates closely with overall DET performance, and it is auto-gradable for an instant estimate. Your study plan then builds in the other DET task types like Listen & Type and Read & Complete.
Your estimated Duolingo English Test score out of 160, a breakdown of how many real words you spotted and how many invented words you rejected, and a week-by-week study plan built to close the gap to your target score.
Built by Derstina — personalised exam prep with real Duolingo English Test practice across all four task types, full timed mocks scored on the 10–160 scale and score tracking, plus dozens of other exams.
Is this a real English word?
Scoring your Read & Select answers and mapping them to the DET 10–160 scale.
How well you told real English words apart from invented ones.
Built from your diagnostic — vocabulary breadth first.