Figure 4.

The left panel shows the average number of Set 2 words defined correctly across all test points (pretreatment, immediate post–Treatment 1, 2-week post–Treatment 1, 36 exposures in the second treatment, immediate post–Treatment 2, 2-week post–Treatment 2) relative to Clinical Evaluation of Language Fundamentals (CELF) Core Language standard scores. The center panel shows gains in the number of Set 2 words accurately defined compared to CELF Core Language standard scores. Gain is computed as the number of Set 2 words accurately defined at 2 weeks post–Treatment 1 (i.e., right before the start of Treatment 2) subtracted from the number of Set 2 words accurately defined at immediate post–Treatment 2. The right panel shows gains in the number of Set 1 words accurately defined compared to CELF Core Language standard scores. Gain is computed as the number of Set 1 words accurately defined at pretreatment subtracted from the number of Set 1 words accurately defined at immediate post–Treatment 1. The line in all three panels is the linear fit line.