@article{KalinowskiEgertGronostajetal.2019,
  author    = {Kalinowski, Eva and Egert, Franziska and Gronostaj, Anna and Vock, Miriam},
  title     = {Professional development on fostering students' academic language proficiency across the curriculum},
  series = {Teaching and teacher education},
  volume    = {88},
  journal   = {Teaching and teacher education},
  publisher = {Elsevier Science},
  address   = {Amsterdam},
  issn      = {0742-051X},
  doi       = {10.1016/j.tate.2019.102971},
  pages     = {15},
  year      = {2019},
  abstract  = {This meta-analysis aggregates effects from 10 studies evaluating professional development interventions aimed at qualifying in-service teachers to support their students in mastering academic language skills while teaching their respective subject areas. The analysis of a subset of studies revealed a small non-significant weighted training effect on teachers' cognition (g' = 0.21, SE = 0.14). An effect aggregation including all studies (with 650 teachers) revealed a medium to large weighted overall effect on teachers' classroom practices (g' = 0.71, SE = 0.16). Methodological variables moderated the effect magnitude. Nevertheless, the results suggest professional development is beneficial for improving teachers' practice.},
  language  = {en}
}