26 can certainly be solid if the sample is representative, the effect size is large and the variance is tight. If you heard that 26 people randomly selected fro

26 can certainly be solid if the sample is representative, the effect size is large and the variance is tight. If you heard that 26 people randomly selected from America took a pill and died within a year, you probably wouldn't want to take that pill. None of that even matters much because there's barely any stats in the paper. I didn't even see anything besides descriptive statistics. It is, by their own description, a qualitative study.