On average, Adult students who received Visualizing and Verbalizing® instruction achieved significant improvements in comprehension. They made large (significant) standard score changes on two of four measures. Additionally, the 18-point percentile increase in following Oral Directions put these students within the normal range (25th–75th percentile). Their pre- to posttest results were statistically significant on all measures.
Results of Adult Students Who Received Comprehension Instruction
Number of Adults: 354
Average Age: 26.1
Average Hours of Instruction: 104.6
Lindamood-Bell Programs Implemented: Visualizing and Verbalizing