Review of the studies in the area of subvocalization reveals that its role in silent reading comprehension remains in question. It appears clear that subvocalization does occur during reading, usually among poorer readers or as reading becomes more difficult, and that it slows the reading process. However, how it affects reading comprehension, or if it affects reading comprehension, remains unclear. This study attempted to answer the question of whether subvocalization affects reading comprehension in an adult community-college population. The purpose of this study was to evaluate the effect of subvocalization on the reading comprehension of the community college students in developmental reading programs.