[red-iron-pine]

1) this is not random sample, it's a sample of who posted a review on glassdoor. There are definitely biases as to who leaves a negative review, and who leaves a positive one -- most people having an alright time don't leave positive reviews.

thus, simply by pulling glassdoor info you're going to get more negative reviews.

2) this pulled reports of toxic culture, but there is no way to verify that someone actually was male or female; it's strictly self-reported.

Speaking from experience: I've put in fake demographic info when putting reviews on GD so that my (former) boss can't identify me.

3) it's basing these findings on the use of a phrase "toxic culture" -- buzzwords, essentially. If other women or men used different phrases, such as "antagonistic and aggressive leadership" -- which sounds toxic to me -- that wouldn't have been counted.