The aim of the study presented in this paper was to compare undergraduate students' information comprehension under conditions where they took notes in longhand during traditional lectures and lectures given through slides. A quasi-experimental approach was adopted to collect the data from 42 participants enrolled in a compulsory course at a state university in Turkey. During the first three weeks, the participants attended lectures presented by the lecturer using PowerPoint slides, while in the next three weeks the lectures were presented in a traditional format where the same lecturer presented the material verbally without using any slides. At the end of each lecture, a quiz was distributed to the participants. The mean scores from the quizzes indicated that when the participants took longhand notes while listening to traditional lectures, they performed better than when they just listened to these lectures and read the lecture notes on the slides. A bibliography is included.