As the original article says, if there was no effect, you’d expect a few studies to get p < 0.05 by chance. Similarly, if there was no effect, you’d expect a few studies to get p > 0.95 by chance, suggesting that vaccines prevent autism. If vaccines do prevent autism, then it would be even more likely to have p > 0.95.
As the original article says, if there was no effect, you’d expect a few studies to get p < 0.05 by chance. Similarly, if there was no effect, you’d expect a few studies to get p > 0.95 by chance, suggesting that vaccines prevent autism. If vaccines do prevent autism, then it would be even more likely to have p > 0.95.