On average, students with a prior Hyperlexia diagnosis who received Visualizing and Verbalizing instruction achieved significant improvements in comprehension. They made large (statistically significant) standard score changes on all measures. Additionally, 9-point percentile increases in receptive (Vocabulary) and expressive (Word Opposites) vocabulary put these students within the normal range (25th–75th percentile).
Students with a Prior Diagnosis of Hyperlexia Who Received Comprehension Instruction Only
Years: Jan. 2008 – Sept. 2021
Number of Students: 85
Average Age: 12.0
Average Hours of Instruction: 120.4
Lindamood-Bell Instruction Implemented: Visualizing and Verbalizing