A survey that was begun more than 25 years ago, followed more than 3000 people from childhood into adulthood and found that boys who were raised with sisters were more likely to grow up to be Republicans.

On July 16, 2013, Uprising host Sonali Kolhatkar interviewed Andrew Healy, lead author of the report which was published in the Journal of Politics and Associate Professor in the Department of Economics at Loyola Marymount University.

Watch a video of the interview:

Click here to download a copy of the original paper.

Bipasha Shom recorded this interview.