Mouthguards Help Scientists Study Head Injuries
Sensors recorded athletes’ head movements.
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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: Identify the study sample and its main comparison.
Grammar in this story: A bounded comparison
in these data
This phrase limits the comparison to the observations studied instead of claiming a universal rule.
Your turn
Describe the sample and the result without saying turning movements are safe.
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The study involved 203 athletes in seven sports. Straight-line acceleration predicted concussion better in these data, but turning movements are not therefore safe.
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