Participation, interaction, and academic achievement in an online discussion environment

•We examine students' participation and interaction pattern change in a synchronous online discussion environment.•Students' participation increased over time, with English learners experiencing more significant growth.•A student-centered online learning community is established.•Writing and reading pre-test scores significantly predicted students' overall participation.•Students' participation significantly predicted their writing and reading post-test scores, especially for English learners.

Though online writing can be beneficial for diverse students in out-of-school environments, there is little consensus on the value of its use in schools. This study examined the online discussion of 48 fifth-grade students and their teachers over the 2009–2010 school year in a public school with large numbers of English learners. We collected students' statewide standardized writing and reading test scores, as well as an archive of all participants' discussion threads during the school year. Students' participation and interaction pattern in the online discussion environment over a school year was examined using growth model analysis and social network analysis. The effect of students' participation on their academic achievement was analyzed using multiple regressions. The results suggest that well-designed online discussions among linguistically diverse upper elementary students can result in increased participation and interaction, leading to language and literacy development.