Prosociality from early adolescence to young adulthood: A longitudinal study of individuals with a history of language impairment.

•This is the first longitudinal study of prosociality in young adults with LI.•Participants with LI perceived themselves as prosocial.•Ratings remained within the expected range across young adulthood (11–24 years).•Two different developmental trajectories were identified for the LI group.•Small to medium effects were found indicating protective effects of prosociality into adulthood.