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General Knowledge

Critical thinking

A claim states something; evidence allows evaluation. Correlation describes two things varying together; it does not prove that one causes the other. Consider alternative explanations.

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Fundamental and secondary

AI-assisted draft · Educator review not completed · Unofficial supplementary resource

Last educator review: none. Content updated: 10 September 2026.

Learning objective

Explain critical thinking, reproduce the worked example and justify a decision in the case study.

Before you begin

Everyday economics

Understand

A claim states something; evidence allows evaluation. Correlation describes two things varying together; it does not prove that one causes the other. Consider alternative explanations.

Worked example

Water and ice-cream sales rise in hot weather. Buying water does not necessarily cause ice-cream purchases: heat may influence both.

Analysis and common mistakes

A widely shared message is not necessarily true. Popularity measures spread, not accuracy.

Case study — reasoning

A headline promises “a method that doubles every grade”. Ask for the sample, comparison group, duration and full results before concluding.

Knowledge check

Summary

A claim states something; evidence allows evaluation. Correlation describes two things varying together; it does not prove that one causes the other. Consider alternative explanations.

Sources for further study and verification

AI-assisted draft · Educator review not completed · Unofficial supplementary resource