The Critical Skill Most IELTS Candidates Get Wrong
True/False/Not Given (TFNG) questions are the single question type where test-takers lose the most marks relative to their actual reading ability. According to British Council data, TFNG accuracy rates consistently fall 10–15 percentage points below candidates’ accuracy on other question types. The reason is almost always the same: candidates confuse False with Not Given.
This guide will give you a precise, replicable method for distinguishing between the two — and a step-by-step strategy you can apply to every TFNG question under timed conditions. For a broader view of how to approach every question type efficiently, our IELTS Reading tips guide covers skimming, scanning, and keyword strategy that applies directly here.
What TFNG Questions Actually Test
TFNG questions do not test how much you know about a topic. They test whether a statement is supported, contradicted, or simply not addressed by the passage. The examiner is assessing your ability to read with precision — to see exactly what is written, not what you think should be written.
Each TFNG question presents a statement. Your job is to match that statement against the passage using one of three labels:
- True: The passage explicitly states information that confirms the statement.
- False: The passage explicitly states information that contradicts the statement.
- Not Given: The passage does not provide enough information to confirm or deny the statement.
Notice the word explicitly. TFNG questions never reward inference or background knowledge. If you have to reason beyond the passage to reach a verdict, the answer is Not Given.
The False vs. Not Given Problem — Explained with Examples
This is the distinction that costs candidates half a band score or more. Here is the definitive way to think about it.
The Test You Must Apply
Ask yourself: Does the passage say something that directly contradicts the statement? If yes, the answer is False. If the passage simply does not mention the idea at all — or mentions related information but does not contradict it — the answer is Not Given.
Worked Examples
Consider this passage extract:
“The ancient city of Pompeii was buried under approximately 4 to 6 metres of volcanic ash following the eruption of Mount Vesuvius in 79 AD. Excavations began in earnest in the 18th century under the direction of the Spanish military engineer Roque Joaquín de Alcubierre.”
| Statement | Answer | Reason |
|---|---|---|
| Pompeii was covered by more than 3 metres of ash after the eruption. | True | The passage says 4–6 metres, which is more than 3 metres. Direct confirmation. |
| Pompeii was destroyed by lava flows, not ash. | False | The passage says volcanic ash. Lava flows directly contradicts this. |
| Alcubierre had previously worked on archaeological sites in Italy. | Not Given | The passage identifies Alcubierre but says nothing about his prior work history. No contradiction, no confirmation. |
| Excavations at Pompeii began before the 19th century. | True | The 18th century is before the 19th century. Direct confirmation through basic reasoning about dates — this is the one case where simple logical inference from stated facts is acceptable. |
The third example is the trap. Many candidates answer False because they assume Alcubierre was a military engineer, not an archaeologist. But the passage does not say he had not worked on other sites. Absence of information is Not Given — never False.
Step-by-Step Strategy
Follow this sequence for every TFNG question. With practice, it becomes automatic within 60–90 seconds per question.
- Read the statement carefully. Identify the key claim — usually a factual assertion about a person, place, number, or relationship.
- Locate the relevant section of the passage.Use keywords from the statement to scan. TFNG statements usually follow the order of the passage, so use the previous answer’s location as your starting point.
- Read that passage section in full. Do not skim. Read one or two sentences before and after your keyword hit to avoid missing the context.
- Compare the statement to the passage word by word. Look for anything that is different — a number, a direction, a category, a qualification.
- Apply the False test. Ask: does the passage say something that directly contradicts this? If yes → False. If no → move to step 6.
- Apply the True/Not Given split. Does the passage explicitly confirm the statement? If yes → True. If the passage simply does not address this idea → Not Given.
Common Traps Examiners Set
Cambridge IELTS examiners use a predictable set of traps. Knowing them in advance eliminates most errors.
Trap 1: Partial Information
The passage mentions part of the idea in the statement but not the specific claim being made. Example: the passage discusses a scientist’s work in one country; the statement claims they worked in two countries. If the passage only mentions one country and does not deny the other, the answer is Not Given, not False.
Trap 2: Synonyms That Change Meaning
The statement uses a word that looks like a synonym for something in the passage but carries a different meaning. Example: passage says “mandatory”; statement says “recommended.” These are opposites — the answer is False. This trap is designed to catch candidates who read too quickly. A strong reading vocabulary, particularly awareness of hedging and qualification language, is the most reliable defence against this trap.
Trap 3: Extreme Quantifiers
Statements use absolutes like “all,” “never,” “always,” or “only” when the passage uses qualified language like “most,” “rarely,” or “primarily.” If the passage says “most researchers” and the statement says “all researchers,” that is False.
Trap 4: Cause and Effect Reversal
The statement reverses the cause-and-effect relationship described in the passage. If the passage says “A caused B” and the statement says “B caused A,” the answer is False — even if the same two variables appear in both.
Trap 5: Using Your Own Knowledge
You may know that something is true in the real world, but if the passage does not state it, the answer is Not Given. Your external knowledge is irrelevant. The passage is the only authority.
Trap 6: The Near-Miss Location
The answer to a TFNG question is sometimes in a completely different paragraph from where you expect it. If you cannot confirm or deny a statement from the obvious location, scan the rest of the passage before settling on Not Given.
Yes/No/Not Given vs. True/False/Not Given
IELTS Reading includes two closely related question types. Understanding the difference prevents confusion. This same precision in distinguishing factual claims from opinion is a skill that also improves matching headings performance, since both question types require you to understand exactly what the text states rather than what it implies.
| Feature | True/False/Not Given | Yes/No/Not Given |
|---|---|---|
| What the statements represent | Factual claims about the world | The writer’s opinion or attitude |
| What you are looking for | Objective facts in the text | The author’s views or claims |
| “Disagrees with passage” label | False | No |
| “Not mentioned” label | Not Given | Not Given |
The strategy for both types is identical. The only difference is whether you are hunting for a fact or an authorial stance.
How to Handle Time Pressure
In the Academic test, you have roughly 20 minutes per passage. A passage with 6 TFNG questions should take no more than 8–9 minutes total — about 60–80 seconds per question. Here is how to stay within that budget.
- Do not re-read the whole passage. Use your keyword scan to go directly to the relevant section. TFNG statements preserve the order of the passage, so your search zone narrows with each answer.
- Trust “Not Given” earlier. Inexperienced candidates spend extra time searching for confirmation that does not exist. If you have scanned the logical location and a one-paragraph radius and found nothing, mark Not Given and move on.
- Flag and return. If a question is taking longer than 90 seconds, mark your best guess, flag it, and come back. A stuck question will drain time from the remaining questions in the passage.
- Never leave a blank. There is no penalty for wrong answers in IELTS. An educated guess — especially between False and Not Given — is always better than no answer.
Practical Approach to Improve Your Accuracy
Passive reading practice does not fix TFNG errors. You need deliberate, analytical practice. Use this method.
- Attempt a TFNG question set from an official Cambridge IELTS practice test (Cambridge IELTS 1–18 series).
- For every question you answer, write down the exact sentence(s) from the passage that justified your answer. If you cannot write down the sentence, your answer was a guess.
- Check your answers. For every error, identify which trap you fell into (use the trap list above).
- Keep a log of your error patterns. Most candidates have one or two consistent error types — usually the False/Not Given confusion or the extreme quantifier trap. Targeted awareness of your pattern accelerates improvement faster than volume practice alone.
Research published in the English Language Teaching Journal (2022) found that explicit strategy instruction combined with error-categorization practice improved TFNG accuracy by an average of 22% over a six-week period, compared to 9% improvement for students who only did timed practice without strategy analysis. The same principle of deliberate error review applies whether you are preparing for Reading or any other component — IELTS Speaking candidates benefit from analogous strategy work, as outlined in our IELTS Speaking tips guide.
Common Mistakes at a Glance
- Answering False when the passage simply does not mention the idea — the single most common error.
- Using background knowledge instead of relying solely on the passage text.
- Reading too quickly and missing a qualifying word (“rarely,” “some,” “in certain cases”) that changes the meaning.
- Stopping the search at the first keyword match without reading the surrounding context.
- Confusing TFNG with Yes/No/Not Given and applying the wrong framework.
- Leaving answers blank under time pressure rather than making a reasoned guess.
Key Takeaways
Mastering TFNG questions comes down to one principle: the passage is the only authority. False requires a direct contradiction; Not Given requires only an absence of information. Apply the six-step strategy, learn the six common traps, and practice with deliberate error analysis rather than volume alone. Candidates who internalize this distinction routinely add half a band to a full band to their Reading score without improving their general reading speed.