Morphological awareness and reading comprehension: Differential mediation mechanisms in native English speakers, fluent English learners, and limited English learners.

•Morphological awareness (MA) contributes to reading comprehension (RC) indirectly.•Reading vocabulary and morphological analysis mediate MA-RC relationship for all.•Word reading fluency mediates MA-RC only for limited English proficient students.•Call for differential instructional support for children with varying proficiency.