This is a common errors diagnostic test for IB Spanish, Spanish 4, Spanish 5, or AP Spanish. The diagnostic has a vocabulary section (i.e. to realize) and students choose correct Spanish word (i.e. darse cuenta de,realizar). There is also a grammar section where students choose correct translation (i.e. I used to ride my bike a lot when I was a kid.....Yo monté/montaba/monto/etc. en bicicleta......). The grammar section covers different grammatical errors students in upper levels tend to make. The vocabulary section also covers common errors students make, especially with false cognates. This diagnostic can be used for your SGO. You can administer it at the beginning of the school year and then as students improve in their writing and you go over common errors in their compositions and practice grammar with them, they will improve. You can also use it as a post test at the end of the year. Answer key is included.