Mock tests
A mock test is not extra homework. It is a rehearsal — the same four modules, the same clock, the same order — taken so that exam day is the second time you do this, not the first.
A complete IELTS test runs Listening, Reading and Writing back to back with no break, and the Speaking interview either the same day or within a few days. That is roughly two hours and forty-five minutes of continuous concentration before Speaking even begins.
Most candidates have practised each module separately and never once sat all three in a row. This is why bands drop on exam day: not vocabulary, not grammar, but Writing Task 2 written by someone who has already been reading for sixty minutes. A mock test is the only way to find out how you perform in that state.
The words are used interchangeably online, but they describe two different tools. A practice test is a section you take when you have twenty minutes, with the answers available, at your own pace. It builds skill.
A mock test is timed end to end, sat once, and marked by someone other than you. It measures readiness. Both are useful, and the mistake is doing only the first kind and assuming it predicts the second.
Listening and Reading are marked automatically the moment you finish. You get a band and a per-question breakdown showing which items you lost and why, so a low Reading band is traceable to True/False/Not Given rather than to reading in general.
Writing is different. You get an AI band estimate on both tasks straight away with written feedback on task response, coherence, lexis and grammar — treat that number as an estimate, not a result. On a booked mock test, a trained examiner then reads both essays and issues the band that counts.
Speaking on a booked mock is a live interview through all three parts with the examiner you selected when booking. Inside the practice app you can also rehearse all three parts by voice with an AI examiner and read back a report — again, an estimate, useful for fluency and structure rather than for a reliable score.
The score is the least useful part of a mock test. The useful part is the record of where the time went and which question types cost you marks.
Roughly every two to three weeks during a preparation period, and one final mock about a week before the exam — close enough to be representative, far enough that a bad result still leaves time to act on it. Taking a full mock every few days produces fatigue and flat scores; it does not produce improvement.
A mock test is a good indicator, not a guarantee. Listening and Reading are objectively marked, so those bands are the most reliable. Writing and Speaking involve examiner judgement, which is why a mock graded by a trained examiner is far more informative than a self-assessed one. No mock test can predict an official band exactly.
About two hours and forty-five minutes for Listening, Reading and Writing taken together, plus 11 to 14 minutes for the Speaking interview.
Yes. The Listening, Reading and Writing modules run in the IELTS ACER desktop app in a computer-delivered layout. Speaking on a booked mock is a live interview with a real examiner, scheduled when you book.
The app is free to download, and you get three practice tests when you sign up. Full mock exams graded by a human examiner are paid, and are usually booked through a learning centre.
A common approach is to aim half a band above your target on a full timed mock before booking, because scores under real exam pressure tend to sit slightly below practice scores. This is a rule of thumb, not a rule.
Book a full mock exam graded by a trained examiner, or download the app and start with the free practice tests.
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