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Overview
The Vocabulary Improvement Program for English Language Learners and Their Classmates (VIP) is a vocabulary development curriculum for English language learners and native English speakers (grades 4–6). The 15-week program includes 30–45 minute whole class and small group activities, which aim to increase students' understanding of target vocabulary words included in a weekly reading assignment.
Research
One study of VIP met the What Works Clearinghouse (WWC) evidence standards with reservations. It included 142 English language learner students in the fifth grade in 16 classrooms in California, Virginia, and Massachusetts.1
Effectiveness
VIP was found to have potentially positive effects on reading achievement and English language development.
| Reading achievement | Mathematics achievement | English language development | |
|---|---|---|---|
| Rating of effectiveness | Potentially positive | Not reported | Potentially positive |
| Improvement index2 | Average: +19 percentile points | Not reported | Average: +17 percentile points Range: -4 to +35 percentile points |