ABSTRAK
Mekanisme contagion menyebabkan perilaku menyebar dan ditiru dalam jaringansosial. Mekanisme contagion terjadi dalam dua cara, yaitu cohesion dan structuralequivalence. Mekanisme semacam ini juga dapat terjadi pada perilaku bullyingoleh pelajar remaja. Penelitian dilakukan pada jaringan peer group di pondokpesantren, yang terdiri dari enam angkatan pelajar SMP dan SMA. Denganmenggunakan pendekatan mixed method dan teknik snowball sampling sertametode analisis jaringan, penelitian ini bertujuan mengetahui model contagionyang lebih dominan, focal actor yang berpotensi menyebarkan bullying secaracontagious, serta pesan yang contagious. Hasil penelitian menunjukkan bahwacontagion tidak hanya terjadi secara cohesion dan structural equivalence, tapijuga reversed structural equivalence. Dan contagion secara cohesion lebihdominan dibanding dengan model contagion lain dalam jaringan bullying ini.

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ABSTRACT
Contagion mechanism makes certain behavior spread and imitated on socialnetwork. This mechanism occurs in two ways, by cohesion and structuralequivalence. This mechanism also can occur in the bullying behavior of teenagestudent. Study conducted on peer group network in the boarding school, consist ofsix generations high school student. Using mixed method approach and snowballsampling technique with social network analysis method, research?s aims are toknow the most dominant contagion model, focal actor who potentially spreadbullying contagiously, and the contagious message. The results shows thatcontagion not only occurs by cohesion and structural equivalence, but alsoreversed structural equivalence. And contagion by cohesion are dominant ratherthan others in this bullying network.