The purpose of this study is to determine the effect of multiple choice questions and open ended questions on comprehension while evaluating the skills of reading comprehension of fourth grade students. The study group consists of one hundred thirty two, 4th grade students from primary schools in Uşak city center. In this research, the survey model was used. Two different data collection tools are used in this research. First data collection tool consists of twelve exams divided into two groups. First group contains multiple choice questions (two narrative texts, two informative texts). The second group contains open-ended questions. The exam consists of six texts and six paragraphs. As a second data collection tool, we used an interview form with four questions for focus group discussion. Fifteen students chosen with purposeful sampling were asked to answer these four questions and their responses were recorded in written form. The results indicate that the students were more successful in multiple choice exams rather than in exams with open-ended questions. The students take positive attitudes to multiple choice questions because they are used to this kind of questions and they have chance factor to find the right answer. No students have positive attitudes towards open-ended questions. When we compare the results of students on the paragraphs and on the texts, the scores are higher on the paragraphs. As a result of group interview conducted with fifteen students it was found that all the students prefer multiple choice exams to exams with open-ended questions.