In this work, the focus is primarily the interaction between readers, texts, and multiple-choice questions, and how some of the text features can be used to assess the difficulty or ease of reading comprehension skill. Thus, the proposal of this research is to suggest elements for the establishment of an analysis driven by an approach on a interactionism basis, in the Psycholinguistics field, concerned with the comprehension text skills, which bring together computational and manual analysis of the students` performances in Portuguese proficiency tests in PUC-Rio. Five multiple-choice exams applied within 2009.2 and 2011.2 were analyzed. The data show that reader get into the university with low reading skills, which sort them into the less skilled readers category.