Complex sentence: The terms'student exchange' and'study abroad' are often used interchangeably however study abroad usually involves the student study full time and not in partnered institution like student going for exchange where they will be studying in the partner university of their home institution.
Split into simpler sentences: The terms'student exchange' and'study abroad' are often used interchangeably; however, the two terms are describing separate items. To study abroad usually involves the student studying full-time at a university while student exchange programs only have students studying at a partner university of their home institution.