This study measured the impact of asynchronous computer-assisted language learning (CALL) approaches on high and low achievers' vocabulary retention and recall of English as foreign language learners. Fifty participants were assigned into two homogeneous groups. Both groups covered eight expository passages, which included "Select readings:…

In order to determine if homogeneous grouping in basic expository writing classes makes teaching more effective, 2,212 incoming college freshmen were given a two-hour essay placement examination and divided into four groups according to the kinds of writing problems they had. They then enrolled in sections designated by placement group, except for…