Middle- and high-school students' attitudes towards online peer-assessment were described and examined in this study. One hundred and eighty-four (184) students answered a 16-item questionnaire about their experiences with an online peer-assessment tool called peerScholar. Overall, students in Canada converged with those in other countries with respect to attitude. That is, Canadian students tended to have a positive attitude towards the implementation of online peer-assessment in their classrooms. Additionally, students reported that they found the peer-assessment process helpful and that they felt that they benefited from the process. Unlike previous studies, students from a wider range of grade levels and subject areas were questioned. Directions for future studies that involve the peer-assessment process in the school system are discussed.