I've seen slightly different percentages given, but here's a list:
Accuracy in Reading Words Aloud
- Independent 99% (1 error in 100 words)
- Instructional 95%-98% (2-5 errors in 100 words)
- "The Gray Zone" 90%-95% (5-10 errors in 100 words)
- Frustration ≤90% (10 errors in 100 words)
- Listening no reading; student listens to what is read to him her another
Accuracy in Comprehension
- Independent ≥90% (9 out of ten questions right)
- Instructional ≥70% (7 out of ten questions right)
- "The Gray Zone" 51%-69% (6 out of ten questions right)
- Frustration ≤50% (5 out of ten questions right)
I always thought the grade levels referred to an independent reader at that level.