This does not sound like acceleration (also known as grade-skipping or full-grade-acceleration).
"Full-grade promotion" typically means passing to the next grade; not retained. ("Retained" typically means failed; student will repeat the same grade.)
"Proficient" typically means met standards; pass.
There is typically a category above "Proficient", which is called "Advanced."
There is a difference between percent and percentile.
- Percent is the proportion of a student's answers correct. For example, 9 out of 10 correct.
- Percentile is the student's score relative to others being compared. For example, score was higher than 90% of students compared.
