UTMB has received a three-year, nearly $750,000 grant from the United States Office of Justice Programs National Institute of Justice to continue a long-term study on healthy and unhealthy teen dating relationships. Approximately 25 percent of teens are physically, psychologically or sexually abused by dating partners each year, said Jeff Temple, UTMB assistant professor in the department of obstetrics and gynecology and principal investigator of the study.