Skripsi ini meneliti hubungan antara peran guru dan sosialisasi peer group terhadap perilaku menyontek siswa ketika ujian di kelas, yang memperbandingkan hubungan tersebut dalam perbedaan jenis sekolah dan kelas siswa. Penelitian ini menggunakan pendekatan kuantitatif yang eksplanatif untuk menjelaskan hubungan antarvariabel tersebut. Hasil penelitian menemukan bahwa peran guru dan sosialisasi peer group tidak berpengaruh signifikan terhadap perilaku menyontek siswa ketika ujian. Siswa cenderung bersikap rasional dalam mencapai tujuan untuk memperoleh nilai baik. Meski begitu, perbedaan kelas siswa dan jenis sekolah antara sekolah non-keagamaan dan sekolah keagamaan yang menjadi objek penelitian memberi pengaruh terhadap hubungan tersebut.

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This thesis examine the relation between teacher’s roles and peer group socialization toward the student tendency in cheating attitude, which compared that relation in two different school type and different student class-level. This thesis is explanative quantitative research. The findings are teacher's roles and peer group socialization have no significant effect toward the student tendency in cheating attitude. Students tend to become rational to pursue the goal, that is to reach the good school grades. Although, the difference in student class-level and school type between the state-owned and the religious-private that became the object research, gave effects toward the relations.