being better in unmeasured ways. In Trinidad and Tobago students are assigned to secondary schools based on an algorithm …-bound effects show that while students (particularly females) with strong expressed preferences for single-sex schools may benefit … from attending them, most students perform no better at single sex schools. I show that the treatment effect for the …

data confirmed that it reduces depression and improves self-esteem and school aspirations. These positive impacts on girls …This study investigates the effects of single-sex schooling on students’ mental health, focusing on feeling blue …, happiness, and suicidal ideation. Employing a national-level large-scale dataset regarding middle school students in South Korea …