More and more students are going to hospital emergency departments for mental health related visits, but schools don’t have evidence-based practices to support them when they return to class, according to a University of Virginia researcher.

The study found that 52% of students surveyed considered leaving their school after the law took effect, and 78% considered leaving Texas entirely. Of the 21 staff and faculty members surveyed, about one-quarter said they have considered leaving Texas.

While the number of impacted students appears to be small—about 300 students targeted last week—the actions have sparked fear and questions about the rights these students have, especially free speech.