LingVo.club
Level
Two studies find mixed results on grouping English learners — Level B1 — Graduates in red robes pose for a photo outdoors

Two studies find mixed results on grouping English learnersCEFR B1

24 Nov 2025

Adapted from Jade McClain-NYU, Futurity CC BY 4.0

Photo by Vitaly Gariev, Unsplash

Level B1 – Intermediate
5 min
256 words

Two recent studies asked whether putting many English learners (ELs) together in the same classes helps their academic outcomes. The high school study, published in the Peabody Journal of Education, analyzed New York City Public School records for 31,303 ninth graders in 2013, 2014 and 2015. Researchers divided students by years learning English before ninth grade: newcomer EL (1–3 years), developing EL (4–6 years) and long-term EL (7 or more years). They measured the percent of ELs in students' courses and then compared graduation and college enrollment across schools with EL shares of 50% or more and those with less than 50%.

The team found that higher concentrations of ELs in courses were associated with lower chances of graduating and lower college enrollment, regardless of prior years learning English or the overall school share. Reported effects included 10–15% lower four-year graduation, 6–11% lower six-year graduation, 12–13% lower immediate college enrollment and 9–13% lower enrollment within 2.5 years.

The elementary randomized trial assigned 84 fourth- and fifth-grade ELs to small groups that were either all ELs or mixed with non-EL peers. All groups had the same 12-week language and literacy curriculum from the same teachers. On average, researchers found no statistically significant differences in language, reading comprehension or argumentative writing, though heterogeneous groups helped higher-skill students and homogeneous groups helped earlier-stage learners. Observations showed different teacher practices in each group type. Both studies conclude grouping ELs together should not be a default practice.

Difficult words

  • educatorsPeople who teach or instruct others.
  • groupingPutting people together in specific categories.
  • academicRelated to education or school subjects.
    academic performance
  • homogeneousMade up of similar kinds or types.
  • heterogeneousMade up of different kinds or types.
  • prioritizeTo treat something as more important.

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • How can schools improve grouping strategies for English learners?
  • What are the potential benefits of integrating English learners with proficient peers?
  • Do you think all students benefit more from homogeneous or heterogeneous groups? Why?

Related articles

Two studies find mixed results on grouping English learners — English Level B1 | LingVo.club