VIP shows potentially positive effects on reading achievement for fifth-grade English language learners (effect size 0.50, not statistically significant)¶

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i2 medium
Currency · newest study 2006 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 In a randomized controlled trial with differential attrition, VIP improved cloze-passage reading performance for English language learners with an effect size of 0.50 that was not statistically significant but was substantively important by WWC standards. → Vocabulary Improvement Program for English Language Learners and Their Classmates 2006

Evidence¶

Vocabulary Improvement Program for English Language Learners and Their Classmates 2006¶

Vocabulary Improvement Program for English Language Learners and Their Classmates. (2006). What Works Clearinghouse Intervention Report, U.S. Department of Education. http://www.brookespublishing.com/store/books/lively-6342/index.htm

q3 · i2 · causal · r2

WWC re-analysis of the Carlo et al. (2004) randomized controlled trial's English language learner subsample (142 fifth graders in 16 classrooms). The cloze-passages finding showed effect size 0.50, mean difference 1.92, rated ns, with an improvement index of +19 percentile points; the effect was "substantively important by WWC standards".

"The WWC analysis of the English language learner subsample found no statistically significant differences on reading achievement (performance on cloze passages), but the effect was large enough to be considered substantively important by WWC standards."

Discussion¶

Related Claims¶

• Severe and differential attrition at grade 4 (68.2% intervention vs. 44.2% comparison) led the WWC to exclude grade-4 outcomes from review — related
• EIR® had a positive, substantively important but statistically non-significant effect on first-grade reading comprehension — related
• The WWC rates Reading Mastery as having potentially positive effects on the reading achievement of English language learners — related
• VIP shows no statistically significant or substantively important impacts on PPVT-R and Morphology outcomes for English language learners — related
• VIP produces a statistically significant effect on Word Mastery (taught-word definition selection) for English language learners, effect size 1.03 — related
• Dual language programs improved English literacy achievement, with a potentially positive effects rating based on one study — related
• Meeting the WWC attrition standard is now an important consideration for researchers whose studies may be reviewed by federal evidence reviews — related
• In a five-year quasi-experimental study, the intervention program showed a statistically significant positive effect on fifth-grade reading performance assessment but not on the CTBS Reading subtest — related