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A2.3 · Check sources, misinformation, and research ethics
Learn to check sources, misinformation, and research ethics through clear examples and targeted practice.
Ontario Grade 9 English
Literacy Connections and Applications
A practical test for online information
A convincing headline is not the same thing as reliable evidence. Online posts can mix a correct observation with a claim that the observation cannot support. Before you use a source in schoolwork or pass it to a friend, ask who created it, what evidence it offers, when it was published, and whether another independent source agrees. This lesson uses invented examples so you can practise the method without relying on a current news story.
What you will learn
- Separate a claim from its evidence.
- Check author, date, purpose, and independent confirmation.
- Use or cite a source honestly.
Start with the exact claim
Imagine a post that says, “Every student learns faster with background music.” The word “every” makes a very broad claim. A photo of one student wearing headphones cannot show what happens for all students. Identify what the post actually asks you to believe before you judge its evidence.
Trace the evidence
Look for a named author or organization, the original research or data, the date, and enough detail to understand how a result was obtained. A link that leads only to another repost is not an original source. A source may be useful for one question while being too weak for another.
Compare and report carefully
Find a second independent source that addresses the same claim. Check whether it describes the same age group, task, and conditions. If the evidence is incomplete, write “this post claims” rather than stating the claim as a fact. Quote only words you have verified, cite the actual source used, and do not invent a publication date.
Four source checks
| Question | What to look for |
|---|---|
| Who? | Named author or accountable organization |
| When? | Relevant publication or update date |
| How? | Original evidence and method |
| Compared with? | Independent confirmation |
Worked example
Check a study-tip post
An invented unsigned post says, “A survey proves all students remember twice as much when music plays.” It gives no survey link, date, sample, or method. Can you cite the statistic as a fact?
- Identify the claimThe post claims a doubling of memory for every student. That is a measurable and unusually broad claim.
- Look for evidenceNo original survey, sample or method is available. The word “proves” does not supply those missing details.
- Choose an honest responseDo not cite the number as established fact. Search for an original study and a separate reliable source, or leave the statistic out.
Answer: No. The invented post does not provide enough evidence to support that statistic.
Check: You can explain precisely which source details are missing.
Common mistakes and how to avoid them
Trusting a number because it sounds precise.
Correction: Ask where the number came from and whether you can inspect the underlying evidence. A precise number without a traceable source is still unverified.
Lesson summary
- State the claim before evaluating it.
- Trace evidence to its original source and compare independent accounts.
- Describe uncertainty honestly and cite only sources you actually used.
Check your understanding
Question 1
Which detail would most directly help verify the invented survey claim?
- A link to the original survey and its method
- A brighter thumbnail
- More reposts of the same sentence
- A longer headline
Show answer and explanation
A link to the original survey and its method
The original survey and method let you examine who was studied and what was measured.
Key terms
- Claim
- A statement that can be supported or challenged with reasons and evidence.
- Primary source
- The original report, record, or data rather than a later repost.
Continue through ENL1W
View the complete ENL1W Ontario Grade 9 English curriculum and lessons
About this lesson and its review
Published by DoAssignment. This reviewed lesson follows Ontario Grade 9 English (ENL1W), expectation A2.3. It is a study resource, not an official curriculum publication.
Before publication, content is checked for structure, mathematical or chemical notation, calculations, course boundaries, and readability. Errors can still occur, so corrections are welcomed.