That is interesting data, but it's not that clear that you can derive actionable advice from it — particularly for employee candidates themselves. Is it the li

That is interesting data, but it's not that clear that you can derive actionable advice from it — particularly for employee candidates themselves. Is it the listing of certifications that is inversely correlated with the career progress of the employee? Or is it because listing a certification is strongly correlated to having one, with this being what is truly inversely correlated with career progress? And, if so, in what direction is the cause-effect? Maybe the tendency to list certifications is correlated to certain personality or attitude that is less likely to progress. Or maybe it is accumulating certifications that is correlated to this. In that case, by not listing them, the candidate will succeed in hiding this fact from potential employers, which may help him or her. However, what if it is not progressing in one's career that makes one more likely to list (or accumulate) certifications in an effort to compensate? And in that case, all else being equal, maybe the would-be certification-lister would be even worse off were they not to list it! For a silly analogy, I'm betting that, among users of dating apps, total time spent on them is inversely proportional to the probability of being in a long-term relationship at some point in a given timeframe. However, that does not necessarily mean that using them for long has any causal effect on reducing one's chances.