Abstract :
Academic procrastination can be stated as a procrastination tendency to start up or finish
an academic assignment; thus, if the behavior is allowed, it will give bad impacts to the
students. Therefore, it is needed a way that can be used to decrease the academic
procrastination of the Senior High School (SMA) students, in which it is by using the peer
counseling. This research aimed at discovering the effectiveness of peer counseling to
decrease the academic procrastination tendency on the 11th grade students of Senior High
School (SMA). This research was a quasi-experimental research using the pre-test posttest
control group design. The research subjects were determined by using the purposive
sampling, in which there were 20 students that consisted of 10 students of experimental
group and 10 students of control group. The data collection method used the Tuckman
Procrastination Scale (TPS) which analyzed by using the Wilcoxon analysis test and the
Mann Whitney test. The research results showed that there was a difference on the score of
academic procrastination (Z = -3,445; ρ = 0,001<0,05). Therefore, it can be concluded
that the peer counseling can be used to decrease the academic procrastination tendency on
the 11th grade students of Senior High School (SMA).