I see where you're coming from, but sociology is a soft science. Even in an experiment like your resume example, there are many uncontrollable variables (company sizes/values/morale, hr staff, etc) that render the data somewhat anecdotal, even if it follows a pattern.
Moreover, this post is a personal outlook, and doesn't necessarily need hard data to prove an individual experience. There is really no "If A, then B" implied here.