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	Grade level	Grade level	Grade level	Grade level extensions
Achievement standards	Grade level	Grade level	Modified level	Alternate level
Participating students	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