This dissertation investigates the linguistic features of engagement in spoken academic online and face-to-face instruction in mathematics on two platforms: Khan Academy and MIT OpenCourseWare. In particular, the study analyses involvement features (personal pronouns and deixis) and interactional features (response elicitors, direct hypothetical…

Many people face the challenge of finding effective computer-based software instruction, including employees who must learn how to use software applications for their job and students of distance education classes. Therefore, it is important to conduct research on how computer-based multimedia software tutorials should be designed so they are as…

High attrition rates of African American college students' is a continuing concern of higher education administrators. This is particularly true of African American men attending community college. African American men consistently experience low levels of scholastic achievement as a result of entering college underprepared, with academic deficits…