Rheeda Walker, University of Houston (IMAGE) University of Houston Caption Rheeda Walker, University of Houston professor of psychology, is reporting that suicide risk factors vary by ethnic group. The newly published research provides a window into new suicide risk profiles needed for a rapidly changing America. Credit University of Houston 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.