| Description | Definition | Code |
|---|
| Birth | Birth is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | Birth |
| Prenatal | Prenatal is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | Prenatal |
| Infant/toddler | Infant/toddler is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | IT |
| Preschool | Preschool is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | PR |
| Prekindergarten | Prekindergarten is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | PK |
| Transitional Kindergarten | Transitional Kindergarten is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | TK |
| Kindergarten | Kindergarten is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | KG |
| First grade | First grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 01 |
| Second grade | Second grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 02 |
| Third grade | Third grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 03 |
| Fourth grade | Fourth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 04 |
| Fifth grade | Fifth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 05 |
| Sixth grade | Sixth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 06 |
| Seventh grade | Seventh grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 07 |
| Eighth grade | Eighth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 08 |
| Ninth grade | Ninth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 09 |
| Tenth grade | Tenth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 10 |
| Eleventh grade | Eleventh grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 11 |
| Twelfth grade | Twelfth grade is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 12 |
| Grade 13 | Grade 13 is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | 13 |
| Postsecondary | Postsecondary is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | PS |
| Ungraded | Ungraded is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | UG |
| Adult Education | Adult education is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | AE |
| Other | Other is specified as the typical grade or combination of grade-levels, developmental levels, or age-levels for which an assessment is designed. | Other |