On average, students who received Visualizing and Verbalizing® instruction achieved significant improvements in areas associated with language comprehension. They made large (significant) standard score changes on three of the four measures. Additionally, the 24-point percentile increase in Comprehension puts these students well within the normal range (25th–75th percentile). Their pre- to posttest results were statistically significant on all measures.
Results of Students Who Received Comprehension Instruction
Number of Students: 5,072
Average Age: 12.5
Average Hours of Instruction: 98
Lindamood-Bell Instruction Implemented: Visualizing and Verbalizing