SLATE-Plus is the longer version that tests all skills (Reading, Listening, Grammar, Writing, and Speaking) and is only 90 minutes in length with 5-business-day result delivery.
SLATE will determine an overall proficiency level from 0 (Beginner) to 6 (Advanced), as well as individual proficiency levels from 0 to 6 for each of the three skills tested (Reading, Listening, and Grammar.) The SLATE-Plus will determine an overall proficiency level using the same scale and standards, but covering the additional two skills of Writing and Speaking.