Students do not set up their own accounts. Student accounts are created by the teacher, under the teacher account. Once teachers have added students to a class, and assigned publications, students can login.
Teachers set the Usernames and Passwords, then give those out to their students. Students, once your teacher has given you a Username and Password, you can login at Studies Weekly Online.
If you are rostered through Clever or another integration, then you login through that software.
Note to teachers:
To connect a student's Studies Weekly Online account to a teacher's Google Classroom, the students’ Studies Weekly usernames must be their Google Classroom email.