Unit 8 · Detecting Reasoning Errors
Ms Vega's Sugary Drinks Study — Spot the Flaw
Lesson 9 of 10
About this lesson
Detecting Reasoning Errors is the largest and most diverse question category in OC TS — with 122 questions covering a wide range of logical flaws. Let's start with the most commonly tested and most intuitively accessible error: concluding that because two things happen together, one must be causing the other.
Chapters
Question
Ms Vega notices that students in her class who regularly drink sugary drinks at lunch have lower test scores on average than those who don't.
She concludes: "Sugary drinks are causing students to perform worse on tests."
Which sentence best shows the mistake in Ms Vega's reasoning?
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