Read a debate on Jessica Kriegel's research in Fast Company

When Jessica Kriegel set out to write her doctoral dissertation on the unique attributes of the millennial generation, she discovered one major problem: There weren’t any.

"As I was reading all of the different books, research articles, and peer-reviewed studies on generational difference, I started to realize how much contradiction there is in the literature," says Kriegel, who earned a PhD in educational leadership with a specialization in human resources management from Drexel University in 2013. "I realized it's all kind of made up. There's not a lot of hard data that supports any of these assumptions. It's all anecdotal, case studies, research studies with 200 people that they apply to the broader population, and it's really damaging."