Laboratory course in Biochemical and Chemical Engineering Programmes at the Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, has introduced the peer group evaluation, presentation, reports submitted by groups/individual as assessment tools for 3rd year laboratory course. The experiments for the course is done in group and students has to submit two types of reports called long report (group) and short report (individual). The major problem of the group effort is that there are students who did not cooperate and participate in the experiment which in turn affects other students mark in the group. Peer group evaluation and short reports contributed up to 5% to 45% to the total marks of the course respectively. In this study, we evaluated marks of peer group and short report in overall performance of a student. Results indicated that both marks can be used to differentiate student who actively participate in the experiment with those who is a passive member of the team.