A focused Cambridge O Level English Language 1123 unit on interpreting information, evaluating evidence and making careful judgements from what a text actually supports.
Interpreting and evaluating information means going beyond simply locating facts. You must understand what the information means, judge how strongly it is supported, distinguish evidence from opinion and reach conclusions that remain faithful to the text.
R9: Interpreting and Evaluating Information develops the skill of understanding information accurately and making justified judgements about what a source says, suggests or supports.
Understand → Evidence → Interpret → Evaluate → Conclude → Check.
Begin with the information that is explicitly stated. An explicit statement is information the writer gives directly rather than something the reader has to infer.
Text: “The new library opened at 8 a.m. and provides 120 study spaces.”
Direct information: The library opens at 8 a.m. and has 120 study spaces.
Unsupported assumption: The library must always be full.
The last statement is not established by the information given. A careful reader does not turn a possibility into a fact.
Interpretation involves drawing a reasonable meaning from information. A good interpretation is supported by clues in the text.
Text: “After the new bus route began, passenger numbers increased by 35%.”
Reasonable interpretation: The new route may have made bus travel more attractive or accessible to some passengers.
Too strong: The new route definitely caused every passenger to stop using cars.
Words such as may, suggests, indicates, could and is likely to can help express an interpretation at an appropriate level of certainty.
| Type | Meaning | Example |
|---|---|---|
| Fact | A statement presented as verifiable information. | The survey included 500 participants. |
| Opinion | A personal judgement, belief or evaluation. | The new system is excellent. |
| Interpretation | A reasoned meaning drawn from evidence. | The results suggest that the system was well received. |
A source can contain all three. Your task is to recognise which kind of information you are dealing with.
A claim is a statement that makes an assertion. Evidence is information that supports, challenges or helps assess that claim.
Claim: The programme improved attendance.
Evidence: Attendance rose from 72% to 86% during the period described.
The numerical evidence gives the reader something concrete with which to assess the claim.
Evidence must relate directly to the claim being evaluated. A true fact is not automatically useful evidence for every argument.
| Claim | Relevant evidence | Weakly relevant or irrelevant information |
|---|---|---|
| The course increased attendance. | Attendance figures before and after the course. | The colour of the classroom walls. |
| The service became faster. | Recorded waiting times. | The number of staff uniforms. |
| Students found the resource useful. | Survey responses or documented feedback. | The date the building was painted. |
Ask: “Does this evidence actually help prove or assess the claim?”
The strength of evidence depends on the claim being assessed. Evidence is generally more useful when it is specific, relevant, sufficiently detailed and clearly connected to the claim.
| Stronger support | Weaker support |
|---|---|
| Measured results | Unsupported assertion |
| A clearly described sample or observation | A single unexplained example |
| Specific figures | Vague words such as “many” or “huge” |
| Evidence directly connected to the claim | Information about an unrelated feature |
Do not automatically assume that a number is strong evidence. You should still consider what was measured and whether it actually supports the claim.
Numbers can make a statement appear convincing, but interpretation still matters.
“Complaints fell from 10 to 5.”
This is a fall of 5 complaints, or 50%. However, if the number of customers also changed greatly, the figures may need further context before making a broader judgement about service quality.
Always ask what the figures represent, what period they cover and whether the comparison is fair.
Writers can signal how strongly they want a statement to be understood.
| Level | Examples | Effect |
|---|---|---|
| High certainty | will, proves, always, clearly | Presents the claim very strongly. |
| Moderate certainty | likely, generally, indicates | Leaves some room for qualification. |
| Low certainty | may, might, could, possibly | Presents a possibility rather than a firm conclusion. |
When evaluating a statement, notice whether the evidence really supports the level of certainty used.
Words such as everyone, never, completely, guaranteed, perfect and the best can make a claim much stronger than the evidence justifies.
Evidence: “82% of surveyed users said they were satisfied.”
Supported: “Most surveyed users were satisfied.”
Too strong: “Everyone was satisfied.”
Good evaluation considers not only the evidence but also whether the wording of the claim accurately reflects it.
An inference is a conclusion reached from clues. It should be reasonable and text-supported.
Evidence: The article states that the shop remained open late and received most of its customers after 7 p.m.
Reasonable inference: The late opening hours were suited to customers who shopped in the evening.
Unsupported leap: Every customer preferred shopping at night.
The difference is the amount of evidence available. A good inference does not go further than the evidence allows.
When a question asks whether a claim is convincing, do not simply say yes or no. Identify the evidence and explain how it affects the judgement.
Claim → Evidence → Strength/limitation → Judgement.
Example: “The claim is partly convincing because the writer gives specific attendance figures. However, the text does not explain whether other factors affected the increase, so the evidence does not establish the cause with certainty.”
Evidence may have limitations. These do not automatically make it useless, but they may reduce how confidently a conclusion can be drawn.
Use these points only when the source provides enough information to justify them.
Two events occurring together does not automatically prove that one caused the other.
“Ice-cream sales and visits to the swimming pool both increased in July.”
It is reasonable to observe that both increased. It would be too strong to conclude from these figures alone that increased ice-cream sales caused more people to visit the pool.
Look for evidence that establishes a causal link before making a definite claim about cause.
Evaluation may involve considering who produced the information and why. The purpose of a source can affect how its claims should be read.
| Question | What to consider |
|---|---|
| Who produced it? | Is the source identified? |
| Why was it produced? | To inform, persuade, advertise, entertain or report? |
| What evidence is given? | Are claims supported by specific information? |
| What language is used? | Is it measured or strongly persuasive? |
| What is missing? | Does the text leave out information needed for a firm judgement? |
Do not reject a source simply because it has a purpose. Instead, consider how its purpose may affect the way its information is presented.
A strong evaluation is based on evidence from the text. Personal preference is not a substitute for evidence.
Weak: “I don't like this argument, so it is not convincing.”
Strong: “The argument is limited because the writer gives one example but provides no broader evidence to show that the example represents the wider population.”
“A school introduced a quiet reading period three times a week. At the end of the term, 78% of surveyed students said that they enjoyed the reading period, compared with 61% who had reported enjoying independent reading at the start of the term. The school newspaper therefore concluded that the new programme had transformed students into enthusiastic readers.”
Task: Evaluate the conclusion made by the school newspaper.
Response: The conclusion is partly supported by the evidence because the percentage of students reporting enjoyment increased from 61% to 78%. However, the evidence does not fully justify saying that the programme “transformed” students into enthusiastic readers. The survey measures reported enjoyment, and the text does not establish that the reading period alone caused the increase. The conclusion is therefore stronger than the evidence allows.
Why it works: It identifies supporting evidence, recognises a limitation and evaluates the strength of the conclusion rather than simply accepting or rejecting it.
1. CLAIM: Identify exactly what is being asserted.
2. EVIDENCE: Find the specific information that supports or challenges it.
3. EVALUATE: Consider relevance, strength, limitations and language.
4. JUDGE: Give a measured conclusion that matches the evidence.
“A community centre introduced free evening classes. Within three months, the number of visitors increased by 20%. The centre manager said that the classes had made the building more important to the whole community.”
Task: How far does the information support the manager's claim?
Planning prompts:
Good evaluation is evidence-led. Understand what the text says, interpret only what its clues support, examine the quality and limits of the evidence, and make a conclusion that is neither weaker nor stronger than the information allows.
Test your understanding of interpreting and evaluating information. Choose one answer for each question, then submit the quiz to receive your score.