It depends on the person, but sometimes it may actually help. Some people get stressed with boyfriends/girlfriends and other social activities so much they start forgetting about academics. I won't dismiss this as a positive answer, as the các câu trả lời are going to vary bởi the person. Yeah, I do recommend taking public surveys. It helps bạn get a wider perspective, so it's the best choice. Schools that accept one gender are double-edged swords, ruling this câu hỏi out as unanswerable with only one answer. Sorry if I didn't help. Hope the explanation helps at all, haha. ^^~
Hmm so much to think about all I can say is the children hoặc students wouldn't have to deal with relationships. And relationships effect many on their school work. But again there can still be relationships with the same sex, but less likely to happen to many.
Interestingly enough, there's a Socio-linguistic theory that girls do better in all-girl schools both academically and socially do to the speech patterns used bởi teachers when approaching boys and girls in the classroom. That being, when dealing with mixed classes a teacher will use thêm superficial critics with girls, like handwriting and format rather than substance, and are thêm involved in the boys' education progress. Ultimately the theory proposes that it is this classroom behavior that leads girls to be thêm reserved and take far less speaking time in mixed-sex conversations. The theory is called Classroom Talk if bạn wanted to look into it.