- Define and explain Spotting Bias in your own words
- Use key terms such as Bias accurately
- Apply what you have learned to new examples and questions
- Avoid the common mistakes learners make with this topic
This lesson focuses on Spotting Bias: how to detect one-sided sources without dismissing them.
How to detect one-sided sources without dismissing them.
Key ideas
Bias is a clue, not just a flaw
A biased source is not automatically useless. A suffragette newspaper is biased towards votes for women — but that bias tells you exactly what suffragettes thought and felt. The mistake is treating a one-sided source as the whole truth.
Strong answers weigh sources
In exams, top answers do more than describe sources: they compare them, note agreements and disagreements, and judge usefulness using provenance. Saying 'Source A is useful because it is a primary source' is weak; saying 'Source A is useful for showing X, but limited because...' is strong.
Key term — Bias: A one-sided view in a source, favouring one side. A biased source can still be useful if you understand its slant.
Give one reason a source might be biased.
It was made to persuade people to one side, e.g. propaganda or a campaign leaflet.
Answer: It was made to persuade people to one side, e.g. propaganda or a campaign leaflet.
- Writing 'the source is biased so it is useless' Bias does not make a source useless. Explain what the bias reveals and what the source cannot show, instead of dismissing it.
- Calling every old source a primary source A primary source must come from the time studied. A 1990s documentary about the Victorians is secondary, however old it looks.
Practice
A primary source comes from the time studied; a secondary source is made later, using primary sources.
No — it is excellent evidence of what suffragettes believed and how they argued, though one-sided on the wider debate.
Who made the source, when and where — its origin.
Purpose shapes content: a recruitment poster persuades while a diary records, so the same event looks different in each.
Quick check
Which of these best defines "Bias"?
Improve this sentence: 'Source A is useful because it is primary.'
- Spotting Bias: how to detect one-sided sources without dismissing them.
- Bias is a clue, not just a flaw: A biased source is not automatically useless.
- Secondary source: An account made later, using primary sources — for example, a modern textbook about the Victorians.
- Watch out for: writing 'the source is biased so it is useless'