Abstract
This study investigated the advantage and instructional effectiveness of of the spatial graphic representation of an English sentence with coordinators over a linear sentential representation in English as a foreign language (EFL) reading settings. The experiment examined whether the advantage of graphic display of coordinators in the previous experiment was due to Larkin and Simon's (1987) notion of computational efficacy by testing wheter 2 different task-completion times would affect the performance of 2 different display groups. The resluts indicated that the spatial graphic display enhanced EFL readers' comprehnsion of sentences with coordinator more than the sentential display did because of the computational efficacy.
