The present study examined the relative effects of discourse-based and sentence-level grammar instruction on the learning of English present perfect in academic writing, using a sequential explanatory mixed-methods design. Participants were 37 multilingual graduate students enrolled in different sections of an ESL-writing course at a U.S.…

In a knowledge society characterized by an abundance of information sources that present conflicting perspectives on socio-scientific controversies, it is extremely important for readers to construct effective mental models of such controversies. Nevertheless, readers' mental representations of controversial information are assumed to be biased…