In science we have standards for what qualifies as evidence. In increasing order of respectability, we have personal opinion, expert opinion, case reports, cohort studies, RCTs, and meta-analyses.
And then if none of those work, we use what’s known as an ‘SSC lit review’.
In science we have standards for what qualifies as evidence. In increasing order of respectability, we have personal opinion, expert opinion, case reports, cohort studies, RCTs, and meta-analyses.
And then if none of those work, we use what’s known as an ‘SSC lit review’.