Which DET score should I check before making a plan?
Start with your target program's overall and subscore policy. Then compare it with your current overall score, four individual subscores, and recurring task-level errors.
| Information | Question to answer | Action |
|---|---|---|
| Program policy | What overall and subscore results are required? | Save the current official page and deadline |
| Overall score | How large is the gap? | Choose a realistic test date and buffer |
| Individual subscores | Which skill is relatively weak? | Identify the tasks that feed that skill |
| Practice evidence | Which errors repeat? | Turn them into measurable weekly targets |
How do I run a 30–45 minute DET diagnostic?
Use an official practice test or a balanced short set under realistic timing. Record what happened without pausing to study between questions.
- Record your estimated range or current score report.
- Mark every uncertain, late, incomplete, or guessed response by task type.
- For writing and speaking, note relevance, organization, vocabulary, grammar, fluency, and pronunciation separately.
- Choose the two repeated problems that most affect meaning or completion.
| Signal | Likely issue | Next check |
|---|---|---|
| Many missing small words in dictation | Segmentation or function-word recognition | Replay by phrase and mark endings |
| Completion answers look plausible but are wrong | Part-of-speech or context check | Explain the grammatical role before filling |
| Writing stops early | Planning or typing speed | Use a direct answer–reason–example outline |
| Speaking includes long silent gaps | Retrieval or structure | Practise short timed outlines aloud |
What should I practise when a DET question type is weak?
A low task result does not always mean the underlying English skill is the same. Identify the smallest trainable cause.
| Question type | Possible cause | Focused practice |
|---|---|---|
| Read and Select | Weak word recognition or over-guessing | Word families, spelling patterns, and calibrated skipping |
| Fill in the Blanks | Context or word-form errors | Part-of-speech decisions in full sentences |
| Listen and Type | Chunking, function words, or spelling | Phrase dictation with an ending check |
| Interactive Reading | Slow evidence location | Answer from explicit sentence evidence |
| Interactive Listening | Lost conversational purpose | Track speaker, goal, and next action |
| Writing | Thin development or unstable sentences | Answer–reason–example plus controlled editing |
| Speaking | Long pauses or unclear organization | Timed spoken outlines and one-pass recordings |
How should I classify DET mistakes?
Use five categories so the next practice task responds to the actual problem.
| Cause | Example | Next action |
|---|---|---|
| Knowledge | Unknown word or grammar form | Learn it in context and retrieve it later |
| Recognition | Know the word but miss it in audio | Match sound, spelling, and sentence |
| Process | Skip a prompt part or fail to check | Use a short task-specific checklist |
| Timing | Response remains incomplete | Reduce planning time and practise a simpler structure |
| Control | Understand the rule but cannot apply it | Use the target in a new timed response |
How do I review DET reading and listening mistakes?
For objective tasks, reconstruct the evidence and the decision process instead of memorizing one answer.
- Answer again without looking at the key.
- Locate the word, phrase, or sentence that decides the answer.
- Explain why your choice failed and why the correct choice fits.
- Create one similar item or sentence and solve it later.
How do I review DET writing and speaking?
Review content and delivery separately. Keep the original response so you can compare changes rather than rewrite from memory.
| Dimension | Review question | One useful revision |
|---|---|---|
| Relevance | Did I answer every prompt part? | Add the missing claim, reason, or description |
| Organization | Can a listener follow the order? | Use a clear opening and one idea per step |
| Vocabulary | Are words precise and natural? | Replace vague repetition, not every simple word |
| Grammar | Which error pattern repeats? | Edit one pattern, then produce a fresh response |
| Fluency | Where do pauses or restarts cluster? | Practise the same structure with a new topic |
| Pronunciation | Which words are hard to understand? | Record and compare stress and endings |
AI feedback can help label patterns, but it is not an official DET result. Keep the original prompt, response, and concrete examples when deciding what to practise.
When should I start mixed DET practice?
Move from isolated drills to mixed sets after the target behavior is stable in several new examples.
- Stage 1: short drills for one cause.
- Stage 2: the same skill inside one current DET task.
- Stage 3: mixed tasks under realistic timing.
- Stage 4: a full mock test followed by a complete review.
How should I review a DET mock test?
Review the same day while timing decisions and uncertainty are still clear.
- Record the score range or practice score without treating it as official.
- Mark incomplete, uncertain, and guessed answers—not only wrong answers.
- Group the evidence by task and cause.
- Choose no more than three priorities for the next practice block.
- Set a retest condition, such as fewer missing function words across three new dictations.
What should I do with 7, 14, or 30 days left?
Keep the sequence diagnosis → focused practice → mixed practice → final rehearsal. More time means more learning cycles, not a longer daily checklist.
| Time left | Main goal | Suggested structure |
|---|---|---|
| 7 days | Stabilize the highest-impact weaknesses | Day 1 diagnostic; days 2–5 focused and mixed practice; day 6 full rehearsal; day 7 light review |
| 14 days | Complete two review cycles | Days 1–2 diagnostic; days 3–6 focused work; day 7 mock; days 8–12 second cycle; days 13–14 rehearsal and rest |
| 30 days | Build underlying skill and test control | Week 1 diagnosis and foundations; weeks 2–3 task transfer and mixed sets; week 4 mocks, setup, and taper |
Frequently asked questions
How long should I study for the DET?
There is no universal number of days. Use your target, current evidence, and available daily time to choose a 7-, 14-, or 30-day cycle.
Should I take a DET mock test every day?
Usually not. Short focused work plus review is more useful until you can apply the target skill in mixed tasks.
How can I improve my DET score quickly?
Prioritize one or two recurring causes that affect several tasks, practise them under timing, and verify improvement on new examples. No fixed score gain is guaranteed.
Which DET subscore should I improve first?
Start with any program minimum you are missing, then the weakest skill supported by repeated task-level evidence.
Official sources and verification note
This guide supports study and preparation; it does not replace official Duolingo English Test policy. Recheck the official pages before your test.
- How Is the DET Scored?Official overall, individual, and integrated subscore explanation.
- New and Updated DET SubscoresCurrent subscore reporting and interpretation.
- How to Prepare for the DETOfficial preparation resources and practice guidance.
- How the Items Are ScoredTask-level scoring information for objective and open responses.
- Additional Details for Score Comparison TablesLimits on interpreting cross-test score comparisons.