On average, students receiving Special Educations services who received Visualizing and Verbalizing® instruction achieved significant improvements in comprehension. They made large (significant) standard score changes on two of the three measures. Additionally, the 13-point percentile increase in language Comprehension, a statistically significant large standard score change, put these students within the normal range (25th–75th percentile).
Results of Special Education Students Who Received Comprehension Instruction
Number of Students: 1,655
Average Age: 12.8
Average Hours of Instruction: 121.6
Lindamood-Bell Instruction Implemented: Visualizing and Verbalizing