> Are people who are predisposed to imposter syndrome worse hires because this becomes a self fulfilling prophecy?

That's an easy one: nope! All the best people I've worked with have struggled with not feeling good enough while simultaneously doing stand-out work.

I think that depends on what you mean by "worse hire." Reading the article, it seems that those inflicted by more severe (or studied) cases of imposter syndrome are more likely to work harder in order to combat their own feelings of 'incompetence' or 'inability. If someone puts in extra effort and hours, is that a "worse hire"?

Personally, I'm not stranger to this feeling. I've recently been hired into a new (well-renowned) tech company and wonder how that happened / whether or not this company made a mistake hiring me. The only way I can reconcile this feeling is to try and do my best at my new position, within reason, while trying to maintain a healthy work-life-balance that allows me to avoid the biggest detrimental effects mentioned by the article.

I don't think this is a self-fulfilling prophecy per se. I think the only danger that can result from an 'imposter-syndrome hire' is that they may burn themselves out easily if they don't find their footing in a new ground / new position and leave sooner than a "normal" employee.

"The best lack all conviction, while the worst Are full of passionate intensity." -- 1920 W. B. Yeats

Somewhat true of our industry.