You're staring at an IELTS reading question. The passage talks about renewable energy investments in developing countries. The question reads: "Solar power is the most cost-effective renewable energy source." The passage mentions solar. It never compares it to wind or geothermal. Is this "Not Given" or "No"?
I've watched this exact moment happen hundreds of times. A student's eyes go blank. They know the information isn't there, but they're not sure which answer box to tick. That moment of confusion costs band points.
Here's what's happening: Yes/No/Not Given and True/False/Not Given look almost identical. Same answer options, same question format. But they're testing completely different skills. Mix them up, and you'll fail questions even when you've understood the passage perfectly.
Let me show you exactly what separates these two IELTS reading question types, and more importantly, how to stop confusing them.
True/False/Not Given asks: "Does the passage say this?"
Yes/No/Not Given asks: "Does the writer agree with this?"
One checks facts. The other checks opinion. That single difference changes how you read the entire passage.
Here's a real example:
Passage: "Climate change is accelerating. Global temperatures have risen 1.1 degrees Celsius since pre-industrial times, and this warming is undeniably caused by human activity."
TFNG Question: "Global temperatures have risen 1.1 degrees Celsius since pre-industrial times."
Answer: TRUE. The passage states this directly.
YNNG Question: "Climate change is a serious threat to human civilization."
Answer: NOT GIVEN. The passage discusses temperature rises and causes. It never addresses whether this threatens human civilization. The writer's position on that specific claim doesn't exist in the text.
Same passage. Different question types. Completely different answers. This is where your confusion lives.
YNNG questions sneak up on you because you're not just finding information. You're finding what the writer thinks.
You'll see these mostly in argumentative passages, opinion pieces, and critical reviews. The writer has taken a side. Your job is to figure out which side.
Yes = The writer agrees with the statement. They've explicitly supported this idea.
No = The writer disagrees with the statement. They've explicitly opposed it.
Not Given = The writer never said whether they agree or disagree. The statement isn't part of their argument.
Most students crash here. They see information missing and think "the writer disagrees." But disagreeing and staying silent are not the same thing.
Wrong: The passage doesn't mention that coffee improves productivity, so the answer is "No, the writer disagrees." (You're guessing.)
Right: The passage doesn't mention coffee's effect on productivity, so the writer's position on it is Not Given.
TFNG is more straightforward. You're checking what's actually written, not what someone believes.
These appear in scientific passages, historical accounts, case studies, and biographical writing. Neutral tone. Facts and data. Descriptions of events.
True = The statement matches what's in the passage.
False = The passage says something that contradicts this statement.
Not Given = The passage doesn't mention this information at all.
The killer mistake here is using outside knowledge. You know the Eiffel Tower is in Paris. The passage doesn't say that. So what's your answer?
Not Given. Every time.
Wrong: I know the Eiffel Tower is in Paris, so I'll put True. (You're supposed to only use the passage.)
Right: The passage doesn't mention the Eiffel Tower's location. Not Given.
Trap 1: The Inference Problem
Passage: "The new policy requires all employees to work from home three days a week. Home working reduces office costs significantly."
TFNG: "The company reduced its office space after implementing the policy." Answer: NOT GIVEN. The passage says home working reduces costs. It doesn't say the company actually cut office space. You cannot infer this, even though it makes logical sense.
YNNG: "Reducing office costs is beneficial for the company." Answer: YES. The writer calls it a "significant" reduction and frames it positively. They believe it's beneficial.
Trap 2: The Contradiction Test
Passage: "Some critics argue that social media harms mental health. However, recent studies show mixed results, and experts increasingly believe the relationship is more complex than initially thought."
TFNG: "Social media definitively harms mental health." Answer: FALSE. The passage directly contradicts this with "mixed results" and "more complex." This is the opposite of what's stated.
YNNG: "Social media's effects on mental health are straightforward to measure." Answer: NO. The writer clearly disagrees, saying the relationship is "more complex than initially thought."
Trap 3: The Absence
Passage: "The company was founded in 1985 by two engineers. It grew rapidly throughout the 1990s and is now a global leader in software development."
TFNG: "The company's founder studied at MIT." Answer: NOT GIVEN. No information about where the founders studied.
YNNG: "The company's success was inevitable from the start." Answer: NOT GIVEN. The writer describes what happened (growth, leadership) but never claims success was inevitable. They take no position on destiny versus effort.
Look at the question instructions first. They tell you everything.
"True, False, Not Given" = You're answering about facts.
"Yes, No, Not Given" = You're answering about the writer's opinion.
But there's a faster tell. Read the passage itself. YNNG passages use opinion language. Look for "argues," "suggests," "believes," "advocates," "criticizes," "supports," "opposes," "claims." The writer is making judgments.
TFNG passages stay neutral. They present data, describe events, explain processes. The author's voice disappears behind the information.
Speed tip: Read the passage introduction at the start of each section. It often says "The following is an opinion piece..." or "The following passage describes..." That single sentence tells you your IELTS reading question type before you even begin.
Step 1: Find what the question asks about. Locate where in the passage this topic appears. If it doesn't, the answer is automatically Not Given.
Step 2: Find the writer's stance. What does the writer actually say about this? Do they support it, oppose it, or stay neutral? Look for shift words like "unfortunately," "importantly," "however," and "I believe" to spot where the writer takes a position.
Step 3: Match the writer's stance to the statement. Does it line up (Yes)? Does it oppose the statement (No)? Did the writer never address it (Not Given)?
The mistake is jumping to step 3 and thinking about reality instead of what the writer wrote. You're not evaluating truth. You're evaluating the writer's position.
Step 1: Find the exact information. Locate the part of the passage that addresses what the statement claims. If nothing addresses it, stop. It's Not Given.
Step 2: Compare word by word. Does the passage say exactly this (True)? Does it say something opposite (False)? Does it say nothing about this (Not Given)? Pay attention to numbers, names, dates, and words like "all," "most," "some," "may," "will," "always." One word changes the answer.
Step 3: Lock your brain out of outside knowledge. Forget what you know from school, the internet, or experience. Only the passage counts. This is the hardest part, but it's non-negotiable.
Timing trick: Set a timer for 20 minutes on TFNG practice. Speed forces you to rely on the text instead of overthinking. You won't have time to second-guess yourself with outside knowledge.
Error 1: Mixing up the question types. You see YNNG but answer like TFNG. You're using the wrong reading strategy for the wrong format.
Error 2: Using outside knowledge on TFNG. The passage says nothing about something, but you know it's true. You pick True anyway. That's automatic failure. The passage is all that matters.
Error 3: Inferring too much on YNNG. You think the writer probably agrees, so you pick Yes. But they never said it. It's Not Given. Don't read minds.
Error 4: Fearing Not Given. Students treat it like a trap answer. It's not. When the passage doesn't address something, Not Given is correct. Stop avoiding it.
Error 5: Ignoring one-word changes. The statement says "all employees" but the passage says "most employees." That's False, not True. "Sometimes" versus "always" changes everything. Read carefully.
Passage: "Electric vehicles are becoming more affordable, and governments worldwide are offering incentives to encourage adoption. Critics worry about charging infrastructure, which remains limited in rural areas. However, many experts argue that this challenge will be solved within the next decade as technology improves and investment increases."
TFNG Question 1: "Governments offer incentives to encourage electric vehicle adoption."
TFNG Question 2: "Charging infrastructure is equally developed in rural and urban areas."
YNNG Question 1: "Charging infrastructure problems will be solved soon."
YNNG Question 2: "Electric vehicles are too expensive for most consumers."
Check your answers below:
TFNG Q1 = TRUE. The passage directly states governments are offering incentives.
TFNG Q2 = FALSE. The passage says infrastructure "remains limited in rural areas." This contradicts equal development.
YNNG Q1 = YES. The writer agrees through "many experts argue that this challenge will be solved within the next decade."
YNNG Q2 = NOT GIVEN. The passage says vehicles are "becoming more affordable" but never says whether they're too expensive for most people.
Three or four right? You're ready. Two or fewer? Go back to the definitions. This matters more than you think.
False means the passage directly contradicts the statement. Not Given means the passage says nothing about it at all. Example: if the statement is "Paris is the capital of Germany" and the passage says "Berlin is the capital of Germany," the answer is False because they contradict each other. But if the passage never mentions either city, the answer is Not Given.
This distinction is critical on IELTS reading tests. Many students confuse these two answers because both feel like "the statement is wrong." But they're wrong for different reasons.