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All Journal SENTRI: Jurnal Riset Ilmiah
Syahputra, Tengku Havidz
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Aerospace Engineering Humanities Computer Science & IT Economics, Econometrics & Finance Law, Crime, Criminology & Criminal Justice

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Validitas dan Reliabilitas Alat Ukur Self-Control pada Siswa Kecanduan Media Sosial Shafira, Ridna; Ilma, Yana Nazela; Syahputra, Tengku Havidz; Silaban, Sondang; Lubis, Suaidah
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 2 (2026): SENTRI : Jurnal Riset Ilmiah, Februari 2026 (In Press)
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i2.5857

Abstract

This study aims to examine the validity and reliability of a self-control measurement instrument among senior high school students (SMA/MA) in Medan City. The need for a precise instrument arises from the high intensity of social media use among adolescents, which often leads to addictive behaviors and reduced self-regulation. This research represents the initial phase of a Research and Development (R&D) process, with a specific focus on psychometric evaluation of the instrument. The research subjects consisted of 50 students from grades X, XI, and XII, selected using a survey approach. Data were collected using a self-control scale comprising 12 statement items developed based on three dimensions, namely behavioral control, cognitive control, and decision control. Data analysis was conducted through validity testing using the Pearson Product Moment correlation technique and reliability testing using Cronbach’s Alpha. The validity test results indicated that 11 out of the 12 items met the validity criteria, with item-total correlation coefficients ranging from 0.312 to 0.684, exceeding the critical value of 0.279, while one item was found to be invalid. Furthermore, the reliability analysis produced a Cronbach’s Alpha coefficient of 0.707, which falls within the acceptable reliability range. Based on these findings, it can be concluded that the self-control scale demonstrates adequate item discrimination and internal consistency, making it suitable for use.
Phenomenology Subjektif Well Being dan Kearifan Lokal pada Budaya Batak Suku Batak Toba Studi: Hamoraon, Hagabeon, Hasangapon Silaban, Sondang T.; Dewi, Anggi Muthia; Shafira, Ridna; Salsabila, Tania; Syahputra, Tengku Havidz
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 2 (2026): SENTRI : Jurnal Riset Ilmiah, Februari 2026 (In Press)
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i2.5868

Abstract

This study explores the meaning of Subjective Well-Being (SWB) within the cultural context of the Batak Toba community, grounded in the values of Hamoraon (wealth), Hagabeon (descendants), and Hasangapon (honor). Using a qualitative phenomenological approach, the research examines the lived experiences of two middle-aged Batak Toba women who had been married for over fifteen years without male offspring. Data were collected through in-depth interviews, participant observation, and documentation, and analyzed using phenomenological stages including epoche, horizonalization, meaning clustering, and the development of textural and structural descriptions. Findings reveal that SWB in Batak Toba culture is not solely determined by personal satisfaction but strongly shaped by social recognition and adherence to collective cultural values. The absence of a male child is perceived as failure to fulfill Hagabeon, leading to anxiety, shame (maila), feelings of inadequacy, and withdrawal from customary social activities. Although both participants were economically stable, material sufficiency (Hamoraon) alone was insufficient to ensure well-being without lineage continuity and social honor. However, acceptance of destiny, spirituality, and kinship support within the Dalihan Na Tolu system functioned as sources of psychological resilience. The study critically highlights the limitations of material-centered definitions of well-being and emphasizes that, in this cultural context, relational and lineage-based recognition plays a central role in shaping subjective well-being.
Co-Authors Dewi, Anggi Muthia Ilma, Yana Nazela Lubis, Suaidah Salsabila, Tania Shafira, Ridna Silaban, Sondang Silaban, Sondang T.