General Assessment Alternate Assessment Based on Grade-Level Achievement Standards Alternate Assessment Based on Modified Achievement Standards Alternate Assessment Based on Alternate Achievement Standards Content standards taught and assessed Achievement standards Participating students Grade level Grade level Grade level Grade level extensions Grade level Grade level Modified level Alternate level All general education students, most students with disabilities (with or without accommodations) Students who need alternate ways to show mastery of grade-level content Students with disabilities who can make progress toward, but may not reach, grade-level achievement standards in the time frame covered by their IEP Students with the most significant cognitive disabilities