Right, you want to know where she would place in another country’s school system. I tried the Mexican Google (google.mx.com) search of
examen de secudaria español
https://www.google.com.mx/search?source=hp&ei=jueSXMrKE-WGggeX5JzIDg&q=examen+de+secundaria+español
The third result is supposedly a third-grade test, but it seems oddly complicated.