The entire sample is 1400. 110 so far have shown signs. Even if no other brains showed signs, that's still 9%
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En réponse à @ChrisWarcraft @PistolPeteski
Random sampling would in no way make that number less
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En réponse à @ChrisWarcraft
And yes, random sampling could make it less IF the 1400 were self selected (for example, only ppl w symptoms in life sent their brains in)
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En réponse à @PistolPeteski
the 1400 aren't self selected. 1400 football players have died since the study started. 111 sent their brains in. 110 had CTE
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En réponse à @ChrisWarcraft
The article said the investigators can't rule out self selection in that entire sample of 1400.
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En réponse à @PistolPeteski
That statement makes no sense. What would 1400 dead football players self select for, death?
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En réponse à @ChrisWarcraft
They, or their families, decided to send in their brains bc they showed symptoms of the disease while they were alive. It's not that hard.
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En réponse à @PistolPeteski
I feel like you're not understanding this. The total population they are drawing from is 1400. That is the number of football
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En réponse à @ChrisWarcraft @PistolPeteski
players that have died since the study started. Of those 1400, 111 sent their brains in. Those are self selected.
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En réponse à @ChrisWarcraft @PistolPeteski
Therefore, we know for a fact, that the minimum number of dead football players with CTE, in this population, is 9%.
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What they don't know is how much higher that number will climb, because they can't test the other brains.
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