Ji-Young Choi, Iowa State University (IMAGE) Iowa State University Caption This is Ji-Young Choi, Iowa State University assistant professor of human development and family studies. Credit Ryan Riley, Iowa State College of Human Sciences Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.