Concussion Study Highlights Linear Acceleration
Prediction within a dataset does not prove that rotation is harmless.
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Try 2 questions about this story, then explain one idea in your own words. Check the text whenever you need to.
In this lesson: Separate predictive strength from a claim of harmlessness.
Grammar in this story: Causal qualification with because
Because actual collisions usually combine
Because supplies the reason for caution. Usually also leaves room for exceptions.
Your turn
Summarise both the study’s result and the limit on interpreting it.
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Linear acceleration was more predictive of concussion than rotational acceleration in the athletes’ data. Actual collisions usually combine the two motions, so the result does not establish that rotation is harmless.
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