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Assuming proper control for biases in the population, a sample size of 6300 is not tiny. The estimated error for such a population is going to be around 1% (giv
by sidlls 4y ago
Assuming proper control for biases in the population, a sample size of 6300 is not tiny. The estimated error for such a population is going to be around 1% (give or take).
- htag 4y agoIt's just that 1. Sampling and self reporting introduces many concerns to the validity of the study. Let's not downplay the negative effect these can have. 2. It's expensive to collect consent and data. 3. Federal grants often fund these studies. Tax payers are essentially paying to collect the same data twice.
- projektfu 4y agoThat's true assuming the sample is not biased. I'd be interested to see a kaplan-meyer curve for the two groups.