The Influence of Self-Control and Peer Conformity on Aggressive Behavior Among Vocational High School Students
Keywords:
aggressive behaviour, peer conformity, self-control
Abstract
This study aims to determine the effect of self-control and peer conformity on the aggressive behavior of students at SMK Negeri 1 Mundu Cirebon, both partially and simultaneously. This study utilizes a quantitative approach with a survey method. The research population consists of all students majoring in Fishing Vessel Nautical Studies (NKPI) at SMK Negeri 1 Mundu Cirebon, with a sample of 162 students determined using the proportional random sampling technique. The research instrument employs a Likert scale questionnaire that has been tested for validity and reliability. Data analysis techniques include simple linear regression and multiple linear regression analysis. The results of the study indicate that self-control has a negative and significant effect on students' aggressive behavior. The higher the student's self-control, the lower their aggressive behavior. Conversely, peer conformity has a positive and significant effect on students' aggressive behavior. The higher the student's conformity toward their peer group, the higher their aggressive behavior. Furthermore, self-control and peer conformity simultaneously have a significant effect on the aggressive behavior of students at SMK Negeri 1 Mundu Cirebon. The findings of this study demonstrate that students' aggressive behavior is influenced by internal factors in the form of self-control capacity and external factors in the form of social environment influences from peers. Therefore, preventive efforts are required through strengthening self-control and fostering a positive social environment at school.
References
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Auliya, M., & Nurwidawati, D. (2014). Hubungan kontrol diri dengan perilaku agresi pada siswa SMA Negeri 1 Padangan Bojonegoro. Character: Jurnal Penelitian Psikologi, 2(3), 1-5.
Bandura, A. (1986). Social foundations of thought and action: A social cognitive theory. Prentice Hall.
Baron, R. A., & Byrne, D. (2005). Psikologi sosial (Edisi Kesepuluh, Jilid 2). Jakarta: Erlangga.
Baumeister, R. F., Bratslavsky, E., Muraven, M., & Tice, D. M. (1998). Ego depletion: Is the active self a limited resource? Journal of Personality and Social Psychology, 74(5), 1252-1265.
Berk, L. E. (2018). Development through the lifespan (Seventh Edition). Boston: Pearson.
Berkowitz, L. (1993). Aggression: Its causes, consequences, and control. New York: McGraw-Hill.
Bronfenbrenner, U. (1979). The ecology of human development. Cambridge, MA: Harvard University Press.
Buss, A. H., & Perry, M. (1992). The Aggression Questionnaire. Journal of Personality and Social Psychology, 63(3), 452-459. https://doi.org/10.1037/0022-3514.63.3.452
Cahyadi, A. F., Prasetyo, Y., & Farhanindya, H. H. (2024). Agresivitas verbal pada remaja: Peran konformitas dan intensitas bermain. JIWA: Jurnal Psikologi Indonesia, 2(2), 135-145.
Cahyadi, M., Prasetyo, A., & Rahman, F. (2024). Peer conformity and verbal aggression among junior high school students. Jurnal Psikologi Indonesia, 13(1), 45–57.
Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (Fourth Edition). Thousand Oaks, CA: SAGE Publications.
Damayanti, R. S., Sovitriana, R., Nilawati, E., & Widyayani, F. A. (2018). Konformitas dan kematangan emosi dengan perilaku agresi siswa SMK di Jakarta Timur. Jurnal Muara Ilmu Sosial, Humaniora, dan Seni, 2(1), 333-343. https://doi.org/10.24912/jmis
Denson, T. F. (2012). Self control and aggression. Current Directions in Psychological Science, 21(1), 20-25. https://doi.org/10.1177/0963721411429451
Dinastirev Aggensteiner, P., et al. (2024). Aggressive behavior among vocational school adolescents. Journal of Adolescence, 98(2), 210–225.
Gao, Y., Zhang, W., Chen, L., & Yu, C. (2022). Peer conformity and adolescent bullying: The moderating role of peer group status. Journal of Youth and Adolescence, 51(2), 350-363. https://doi.org/10.1007/s10964-021-01542-8
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Gottfredson, M. R., & Hirschi, T. (1990). A general theory of crime. Stanford, CA: Stanford University Press.
Gottfredson, M., & Hirschi, T. (1990). A general theory of crime. Stanford University Press.
Gutiérrez-Cobo, M. J., et al. (2023). Emotion regulation and aggression in adolescents. Personality and Individual Differences, 201, 111–120.
Habibah, N., & Marsinun, R. (2023). Hubungan kontrol diri dengan perilaku agresi verbal siswa SMPN 174 Jakarta. Jurnal Bimbingan dan Konseling Indonesia, 8(1), 33–42.
Hartono, B., & Primasari, D. (2022). Self-control and peer conformity interaction toward aggressive behavior among vocational students. Jurnal Psikologi Pendidikan dan Perkembangan, 11(2), 88–99.
Hutabarat, Y. S. A., Widyorini, E., & Rahayu, E. (2021). Harga diri, konformitas teman sebaya, dan perilaku perundungan pada remaja. Jurnal Psikologi, 14(1), 62-73. https://doi.org/10.35760/psi.2021.v14i1.3668
Israfil, I., & Fauzia, N. (2025). Hubungan kontrol diri dengan perilaku agresif siswa SMK di Bima. Jurnal Konseling Pendidikan, 9(1), 54–66.
Jepsen, J. R., et al. (2021). Bullying and harassment in maritime workplaces. Safety Science, 139, 105–117.
Jindal, R. (2024). Peer conformity and adolescent behavior development. International Journal of Adolescence and Youth, 29(1), 144–158.
Kemp, R. A. T., Sorter, M. T., & Osman, S. L. (2009). Self control and early adolescent antisocial behavior: A longitudinal analysis. Journal of Applied Social Psychology, 39(1), 1-20.
Kennedy, L. (2025). Situational action theory and adolescent aggression. Aggression and Violent Behavior, 71, 101–118.
Kompas.com. (9 Oktober 2023). KPAI: Kasus kekerasan di sekolah capai 861 sepanjang 2023. Diakses dari https://www.kompas.com
Krahe, B. (2005). Perilaku agresif. Yogyakarta: Pustaka Pelajar.
Laninga-Wijnen, L., et al. (2020). Peer norms and aggressive behavior in adolescents. Developmental Psychology, 56(8), 1456–1468.
Lin, H., et al. (2024). Self-control and aggressive behavior among adolescents. Children and Youth Services Review, 158, 107–119.
Ningrum, I. K., & Astuti, K. (2023). Pengaruh kontrol diri dan konformitas teman sebaya terhadap perilaku bullying siswa SMA. Jurnal Psikologi Insight, 7(2), 77–90.
Nurlatifah, F. (2024). Peran kontrol diri terhadap regulasi emosi dan agresivitas siswa SMP. Jurnal Pendidikan dan Psikologi, 8(2), 77-85.
Parasayu, D. (2025). Pengaruh konformitas teman sebaya terhadap agresivitas siswa SMPN 2 Kota Bangun. Jurnal Psikologi Sosial Pendidikan, 6(1), 21–35.
Permatasari, S., Situmorang, N. Z., & Safaria, T. (2021). Hubungan regulasi emosi dan konformitas teman sebaya dengan perilaku agresi di Pontianak. Edukatif: Jurnal Ilmu Pendidikan, 3(6), 5150-5160. https://doi.org/10.31004/edukatif.v3i6.1422
Plopa, M., et al. (2021). Personality and aggression among maritime navigation students. International Maritime Health, 72(4), 252–260.
Pratiwi, N. E., & Murdiana, S. (2024). Hubungan konformitas teman sebaya dengan perilaku agresif pada siswa SMA X Sungguminasa. PESHUM: Jurnal Pendidikan, Sosial dan Humaniora, 3(2), 396-403.
Purnadeka, A. (2020). Pengaruh kecerdasan emosi dan konformitas teman sebaya terhadap agresivitas verbal siswa SMK. Jurnal Psikologi Pendidikan Indonesia, 5(2), 66–79.
Purwasih, R., Dharmayana, I. W., & Sulian, I. (2018). Hubungan kompetensi kontrol diri terhadap kecenderungan perilaku agresif siswa SMK Bengkulu Utara. Consilia: Jurnal Ilmiah Bimbingan dan Konseling, 1(1), 52-59. https://doi.org/10.33369/consilia.1.1.52-59
Sabekti, S. J., & Astuti, K. (2025). Peer conformity and aggressive behavior among senior high school students. Jurnal Kajian Psikologi Pendidikan, 10(1), 34–48.
Santrock, J. W. (2007). Remaja (Edisi Kesebelas, Jilid 2). Jakarta: Erlangga.
Saputra, W. N. E., & Handaka, I. B. (2017). Perilaku agresi pada siswa SMK di Yogyakarta. Jurnal Fokus Konseling, 3(2), 93-99. https://doi.org/10.26638/jfk.376.2099
Sears, D. O., Freedman, J. L., & Peplau, L. A. (1985). Social psychology (Fifth Edition). New Jersey: Prentice Hall Inc.
Sears, D. O., Freedman, J. L., & Peplau, L. A. (1991). Psikologi sosial (Edisi Kelima, Jilid 2). Jakarta: Erlangga.
Sekolah Relawan. (2023). Data kekerasan dan perundungan di satuan pendidikan Indonesia tahun 2023. Jakarta: Sekolah Relawan.
Sugiyono. (2019). Metode penelitian kuantitatif, kualitatif, dan R&D (Edisi Kedua). Bandung: Alfabeta
Tajfel, H., & Turner, J. C. (1979). An integrative theory of intergroup conflict. The Social Psychology of Intergroup Relations, 33–47.
Tangney, J. P., Baumeister, R. F., & Boone, A. L. (2004). High self-control predicts good adjustment. Journal of Personality, 72(2), 271–324.
Taufik Akbar, M., & Widyarini, N. (2022). Pengaruh kontrol diri terhadap perilaku agresi siswa SMK di Makassar. Jurnal Psikologi Terapan, 10(3), 155–167.
Tempo.co. (2024). KPAI: 46 anak meninggal akibat kekerasan di awal 2024. Diakses dari https://www.tempo.co
Tribunnews.com. (25 Januari 2024). Kasus kekerasan anak di sekolah seperti fenomena gunung es. Diakses dari https://www.tribunnews.com
Anggaraningtyas, Y., Lilik, S., & Nugroho, A. A. (2013). Hubungan antara koping stres dan persepsi pola asuh otoriter dengan kecenderungan perilaku agresi pada remaja yang dimoderasi oleh konformitas teman sebaya pada siswa kelas XI SMK Muhammadiyah 4 Boyolali. Jurnal Ilmiah Psikologi Candrajiwa, Vol. 2, No. 1.
Aroma, I. S., & Suminar, D. R. (2012). Hubungan antara tingkat kontrol diri dengan kecenderungan perilaku kenakalan remaja. Jurnal Psikologi Pendidikan dan Perkembangan, 1(2), 1-6.
Asch, S. E. (1951). Effects of group pressure upon the modification and distortion of judgment. In H. Guetzkow (Ed.), Groups, leadership and men. Pittsburgh, PA: Carnegie Press.
Asch, S. E. (1951). Effects of group pressure upon the modification and distortion of judgments. Groups, Leadership and Men, 177–190.
Auliya, M., & Nurwidawati, D. (2014). Hubungan kontrol diri dengan perilaku agresi pada siswa SMA Negeri 1 Padangan Bojonegoro. Character: Jurnal Penelitian Psikologi, 2(3), 1-5.
Bandura, A. (1986). Social foundations of thought and action: A social cognitive theory. Prentice Hall.
Baron, R. A., & Byrne, D. (2005). Psikologi sosial (Edisi Kesepuluh, Jilid 2). Jakarta: Erlangga.
Baumeister, R. F., Bratslavsky, E., Muraven, M., & Tice, D. M. (1998). Ego depletion: Is the active self a limited resource? Journal of Personality and Social Psychology, 74(5), 1252-1265.
Berk, L. E. (2018). Development through the lifespan (Seventh Edition). Boston: Pearson.
Berkowitz, L. (1993). Aggression: Its causes, consequences, and control. New York: McGraw-Hill.
Bronfenbrenner, U. (1979). The ecology of human development. Cambridge, MA: Harvard University Press.
Buss, A. H., & Perry, M. (1992). The Aggression Questionnaire. Journal of Personality and Social Psychology, 63(3), 452-459. https://doi.org/10.1037/0022-3514.63.3.452
Cahyadi, A. F., Prasetyo, Y., & Farhanindya, H. H. (2024). Agresivitas verbal pada remaja: Peran konformitas dan intensitas bermain. JIWA: Jurnal Psikologi Indonesia, 2(2), 135-145.
Cahyadi, M., Prasetyo, A., & Rahman, F. (2024). Peer conformity and verbal aggression among junior high school students. Jurnal Psikologi Indonesia, 13(1), 45–57.
Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches (Fourth Edition). Thousand Oaks, CA: SAGE Publications.
Damayanti, R. S., Sovitriana, R., Nilawati, E., & Widyayani, F. A. (2018). Konformitas dan kematangan emosi dengan perilaku agresi siswa SMK di Jakarta Timur. Jurnal Muara Ilmu Sosial, Humaniora, dan Seni, 2(1), 333-343. https://doi.org/10.24912/jmis
Denson, T. F. (2012). Self control and aggression. Current Directions in Psychological Science, 21(1), 20-25. https://doi.org/10.1177/0963721411429451
Dinastirev Aggensteiner, P., et al. (2024). Aggressive behavior among vocational school adolescents. Journal of Adolescence, 98(2), 210–225.
Gao, Y., Zhang, W., Chen, L., & Yu, C. (2022). Peer conformity and adolescent bullying: The moderating role of peer group status. Journal of Youth and Adolescence, 51(2), 350-363. https://doi.org/10.1007/s10964-021-01542-8
Ghufron, M. N., & Risnawita, R. (2010). Teori-teori psikologi. Yogyakarta: Ar-Ruzz Media.
Ginting, R. A. B., Hasanah, N., & Irwan, I. (2021). Peran guru bimbingan dan konseling dalam mengatasi perilaku agresi siswa SMK Tunas Pelita Binjai. Jurnal Serunai Bimbingan dan Konseling, 10(1), 26-32. https://doi.org/10.37755/jsbk.v10i1.371
GoodStats. (5 Oktober 2024). Kasus perundungan anak melonjak di 2024. Diakses dari https://goodstats.id
Gottfredson, M. R., & Hirschi, T. (1990). A general theory of crime. Stanford, CA: Stanford University Press.
Gottfredson, M., & Hirschi, T. (1990). A general theory of crime. Stanford University Press.
Gutiérrez-Cobo, M. J., et al. (2023). Emotion regulation and aggression in adolescents. Personality and Individual Differences, 201, 111–120.
Habibah, N., & Marsinun, R. (2023). Hubungan kontrol diri dengan perilaku agresi verbal siswa SMPN 174 Jakarta. Jurnal Bimbingan dan Konseling Indonesia, 8(1), 33–42.
Hartono, B., & Primasari, D. (2022). Self-control and peer conformity interaction toward aggressive behavior among vocational students. Jurnal Psikologi Pendidikan dan Perkembangan, 11(2), 88–99.
Hutabarat, Y. S. A., Widyorini, E., & Rahayu, E. (2021). Harga diri, konformitas teman sebaya, dan perilaku perundungan pada remaja. Jurnal Psikologi, 14(1), 62-73. https://doi.org/10.35760/psi.2021.v14i1.3668
Israfil, I., & Fauzia, N. (2025). Hubungan kontrol diri dengan perilaku agresif siswa SMK di Bima. Jurnal Konseling Pendidikan, 9(1), 54–66.
Jepsen, J. R., et al. (2021). Bullying and harassment in maritime workplaces. Safety Science, 139, 105–117.
Jindal, R. (2024). Peer conformity and adolescent behavior development. International Journal of Adolescence and Youth, 29(1), 144–158.
Kemp, R. A. T., Sorter, M. T., & Osman, S. L. (2009). Self control and early adolescent antisocial behavior: A longitudinal analysis. Journal of Applied Social Psychology, 39(1), 1-20.
Kennedy, L. (2025). Situational action theory and adolescent aggression. Aggression and Violent Behavior, 71, 101–118.
Kompas.com. (9 Oktober 2023). KPAI: Kasus kekerasan di sekolah capai 861 sepanjang 2023. Diakses dari https://www.kompas.com
Krahe, B. (2005). Perilaku agresif. Yogyakarta: Pustaka Pelajar.
Laninga-Wijnen, L., et al. (2020). Peer norms and aggressive behavior in adolescents. Developmental Psychology, 56(8), 1456–1468.
Lin, H., et al. (2024). Self-control and aggressive behavior among adolescents. Children and Youth Services Review, 158, 107–119.
Ningrum, I. K., & Astuti, K. (2023). Pengaruh kontrol diri dan konformitas teman sebaya terhadap perilaku bullying siswa SMA. Jurnal Psikologi Insight, 7(2), 77–90.
Nurlatifah, F. (2024). Peran kontrol diri terhadap regulasi emosi dan agresivitas siswa SMP. Jurnal Pendidikan dan Psikologi, 8(2), 77-85.
Parasayu, D. (2025). Pengaruh konformitas teman sebaya terhadap agresivitas siswa SMPN 2 Kota Bangun. Jurnal Psikologi Sosial Pendidikan, 6(1), 21–35.
Permatasari, S., Situmorang, N. Z., & Safaria, T. (2021). Hubungan regulasi emosi dan konformitas teman sebaya dengan perilaku agresi di Pontianak. Edukatif: Jurnal Ilmu Pendidikan, 3(6), 5150-5160. https://doi.org/10.31004/edukatif.v3i6.1422
Plopa, M., et al. (2021). Personality and aggression among maritime navigation students. International Maritime Health, 72(4), 252–260.
Pratiwi, N. E., & Murdiana, S. (2024). Hubungan konformitas teman sebaya dengan perilaku agresif pada siswa SMA X Sungguminasa. PESHUM: Jurnal Pendidikan, Sosial dan Humaniora, 3(2), 396-403.
Purnadeka, A. (2020). Pengaruh kecerdasan emosi dan konformitas teman sebaya terhadap agresivitas verbal siswa SMK. Jurnal Psikologi Pendidikan Indonesia, 5(2), 66–79.
Purwasih, R., Dharmayana, I. W., & Sulian, I. (2018). Hubungan kompetensi kontrol diri terhadap kecenderungan perilaku agresif siswa SMK Bengkulu Utara. Consilia: Jurnal Ilmiah Bimbingan dan Konseling, 1(1), 52-59. https://doi.org/10.33369/consilia.1.1.52-59
Sabekti, S. J., & Astuti, K. (2025). Peer conformity and aggressive behavior among senior high school students. Jurnal Kajian Psikologi Pendidikan, 10(1), 34–48.
Santrock, J. W. (2007). Remaja (Edisi Kesebelas, Jilid 2). Jakarta: Erlangga.
Saputra, W. N. E., & Handaka, I. B. (2017). Perilaku agresi pada siswa SMK di Yogyakarta. Jurnal Fokus Konseling, 3(2), 93-99. https://doi.org/10.26638/jfk.376.2099
Sears, D. O., Freedman, J. L., & Peplau, L. A. (1985). Social psychology (Fifth Edition). New Jersey: Prentice Hall Inc.
Sears, D. O., Freedman, J. L., & Peplau, L. A. (1991). Psikologi sosial (Edisi Kelima, Jilid 2). Jakarta: Erlangga.
Sekolah Relawan. (2023). Data kekerasan dan perundungan di satuan pendidikan Indonesia tahun 2023. Jakarta: Sekolah Relawan.
Sugiyono. (2019). Metode penelitian kuantitatif, kualitatif, dan R&D (Edisi Kedua). Bandung: Alfabeta
Tajfel, H., & Turner, J. C. (1979). An integrative theory of intergroup conflict. The Social Psychology of Intergroup Relations, 33–47.
Tangney, J. P., Baumeister, R. F., & Boone, A. L. (2004). High self-control predicts good adjustment. Journal of Personality, 72(2), 271–324.
Taufik Akbar, M., & Widyarini, N. (2022). Pengaruh kontrol diri terhadap perilaku agresi siswa SMK di Makassar. Jurnal Psikologi Terapan, 10(3), 155–167.
Tempo.co. (2024). KPAI: 46 anak meninggal akibat kekerasan di awal 2024. Diakses dari https://www.tempo.co
Tribunnews.com. (25 Januari 2024). Kasus kekerasan anak di sekolah seperti fenomena gunung es. Diakses dari https://www.tribunnews.com
Published
2026-07-22
How to Cite
Mulyadi, D., Asri, D. N., & Trisnani, R. P. (2026). The Influence of Self-Control and Peer Conformity on Aggressive Behavior Among Vocational High School Students. International Journal of Education, Vocational and Social Science , 5(01), 910-924. https://doi.org/10.63922/ijevss.v5i01.5054
Contact Person +6282139474255
Email : ijevss@citakonsultindo.or.id / editor.ijevss@gmail.com
