Specific Learning Disability – Comprehension
On average, students with a prior SLD diagnosis who received Visualizing and Verbalizing instruction achieved significant improvements in comprehension. They made large (statistically significant) standard score changes on all measures. Additionally, the 17-point percentile increase in Written Language Comprehension puts these students within the normal range (25th–75th percentile).
Students with a Prior SLD Diagnosis Who Received Comprehension Instruction Only
Years: Jan. 2008 – Sept. 2021
Number of Students: 396
Average Age: 13.8
Average Hours of Instruction: 114.8
Lindamood-Bell Instruction Implemented: Visualizing and Verbalizing