In her new book "Lean In: Women, Work, and the Will to Lead," Facebook COO Sheryl Sandberg says women may be preventing their own rise to the top in their respective fields. She also says there are factors holding women back that cannot be controlled, like perception.

Sandberg cites a study conducted 10 years ago at NYU Stern school of business that tested how students perceive powerful women and men differently. AC360° went back to NYU to rerun the experiment and see what, if anything, has changed in the past decade.

In the original test, students reviewed a case study of a real female entrepreneur. Half read her story, and the other half read the same text with one difference – Heidi Roizen's name was changed to Howard.

As Sandberg explained in a TED Talk, both Heidi and Howard were regarded as equally competent, but their personalities were not viewed as similar. Heidi was seen negatively as political and out for herself.

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Joanna Coles, Editor in Chief of Cosmopolitan, says Facebook COO Sheryl Sandberg's success is being held against her. Anderson Cooper spoke with Coles about Sandberg's controversial new book and an AC360° experiment on the differences between how powerful women and men are perceived.