摘要：This is an experimental study which describes the effectiveness of group counseling
treatment in increasing student’s confidence. The subject of this study is IX grade students of
Sekolah Menengah Pertama Negeri 1 Paciran, Lamongan, East Java. The subject which can
be said as sample of the study were collected using purposive sampling. They were divided
into two groups namely experiment group and control group. Both group was given different
treatment and the result of those treatments were examined using Wilcoxon Signed Ranks
Test. The result shows that group counseling treatment can improve student’s confidence.
关键词：group counseling treatment; student’s confidence; wilcoxon signed ranks; layanan konseling kelompok; kepercayaan diri siswa
