Rules, Setup and Adaptive Readiness
This topic covers environment setup, camera and microphone checks, secondary camera, test rules, adaptive-test expectations, and common certification risks.
How to study for the Duolingo English Test
Improve transferable academic English while learning how each current DET task asks you to read, listen, speak, or write under time pressure.
Core concepts
Concept 1
The current at-home DET uses a secure desktop app, government-issued photo ID, computer camera, microphone and speakers, plus a smartphone secondary camera.
Exam cue: Before testing, verify the receiving institution's policy, secure app, ID, internet, audio, lighting, desk, and both camera views.
Concept 2
Setup includes a room scan and ear scan; the secondary camera must remain stable with the screen and keyboard visible.
Exam cue: During testing, stay alone, keep attention on the screen, leave the phone untouched, and speak or type only when instructed.
Concept 3
Certification requires an independent session in a quiet, private, well-lit room with prohibited materials and outside software removed.
Exam cue: Use the official free practice test for task familiarity, not for memorizing supposed live content.
Risk pitfalls and guardrails
Allowing a background app, notification, or second person to interrupt the secure session.
Guardrail: Use a 15-second safety pause before finalizing your action.
Moving the phone after setup or obscuring the screen-and-keyboard view.
Guardrail: Use a 15-second safety pause before finalizing your action.
Treating strong English performance as sufficient when the session does not meet certification rules.
Guardrail: Use a 15-second safety pause before finalizing your action.
Memory anchors
Secure App
The certified DET runs in the dedicated secure desktop application, not an unrestricted browser.
Two Cameras
The computer camera records the test taker while a smartphone provides the required secondary view.
Secondary View
Position the phone on a stable side surface with the computer screen and keyboard visible.
Room Scan
Use the phone before testing to show the desk, walls, and surrounding room.
Ear Scan
The ear scan verifies that no earbuds, headphones, or other audio devices are being used.
Clear Workspace
Keep only the approved computer, secondary-camera phone, and required ID on the desk.
Screen Focus
Keep attention on the test screen, looking at the keyboard only as needed while typing.
No Background Apps
Close messaging, grammar, video-call, and auto-launch software before the secure session.
Adaptive Difficulty
Reading and listening difficulty may change during the test, so easier or harder items are normal.
Practice Test
Use the official free practice test for task familiarity and a readiness estimate, not item memorization.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which device can be used to take the Duolingo English Test itself?
Why is a phone or supported tablet needed during the test setup?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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