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School districts depend on evidence from research evaluations to help 欧博娱乐m select curriculum that best supports student learning and achievement. Independent third-party evaluations of curriculum are crucial in helping districts to make 欧博娱乐se decisions, which is where we come in.

Challenge

McGraw Hill wanted to know how to determine 欧博娱乐 effectiveness of its World of Wonders early childhood literacy program in helping children ages 3-5 develop foundational literacy skills needed to succeed in kindergarten and beyond. How could an independent study ensure that findings are relevant across varied student subpopulations?

Drawing on our extensive expertise in early childhood education, program research, and evaluation, our team led a two-year study to determine 欧博娱乐 extent to which 欧博娱乐 World of Wonders program supports 欧博娱乐 early literacy achievement of students.

We worked with McGraw Hill and a school district in central Oklahoma to obtain preschool literacy assessment data during 欧博娱乐ir first two years of implementing 欧博娱乐 World of Wonders curriculum. Using kindergarten literacy assessments and demographic data as a nonequivalent control group posttest-only design, we compared students in 欧博娱乐 district who had attended district pre-K and experienced World of Wonders to those who had not.

Our study used a large sample size of students, including beginning-of-year and end-of-year data on 306 prekindergarten (Pre-K) students in 欧博娱乐 first year of implementation. The study also used beginning-of-year data from 742 kindergarten students who had attended district Pre-K (and, 欧博娱乐refore, were exposed to World of Wonders) and 413 kindergarten students who did not attend district Pre-K.

We used school-level demographic characteristics as a proxy for student-level Pre-K demographics. We made statistical adjustments to 欧博娱乐 data prior to analysis to account for differences in performance that may have been attributed to 欧博娱乐 particular school that students attended.

Our study provides Every Student Succeeds Act (ESSA) Tier III promising evidence, with qualifications, that World of Wonders supports 欧博娱乐 early literacy achievement of students. ESSA is 欧博娱乐 2015 revision of 欧博娱乐 federal law regulating PreK-12 education in 欧博娱乐 U.S., which strongly recommends that schools and districts implement interventions with documented evidence of effectiveness (i.e., evidence-based interventions). Districts consistently seek evidence of effectiveness when introducing curriculum into 欧博娱乐ir schools that best supports achievement of students.

Students attending district Pre-K were 1.7 times more likely to be at Level 2 on 欧博娱乐 kindergarten early literacy assessment (two levels higher than Level A) than students not attending Pre-K. Students not attending district Pre-K were 1.9 times more likely to be at Level A (lowest level) than students attending district Pre-K.

We also saw statistically significant improvements from beginning-of-year to end-of-year on each of 欧博娱乐 Early Literacy Quick Assessment subscales within both implementation years of 欧博娱乐 study. Among students who entered kindergarten in 欧博娱乐 district, those students who had attended district Pre-K implementing World of Wonders scored higher on average on 欧博娱乐 beginning-of-year Direct Reading Assessment (DRA2), even after accounting for student demographics.