The new movie “Boy Erased”—about a gay teen’s ordeal when forced to attend a “conversion therapy” program—is shining a spotlight on a treatment deemed bogus and harmful by most experts. And new research shows the key role parents often play in efforts to change an LGBT child’s sexual orientation. The first-of-its-kind study, which surveyed white and Latino young adults identifying as lesbian, gay, bisexual or transgender (LGBT), indicated more than half of them experienced efforts to change their sexual orientation during adolescence. Also notable: Rates of depression and suicide attempts more than doubled for LGBT young people whose parents tried to change their orientation, compared to peers who reported no conversion efforts.