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All Journal Biopsikososial: Jurnal Ilmiah Psikologi Fakultas Psikologi Universitas Mercubuana Jakarta
Umar, Livia
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Neuroscience Social Sciences

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Sibling Rivalry and Psychological Well-Being in Early Adulthood Umar, Livia; Savitri, Setiawati Intan
Biopsikososial: Jurnal Ilmiah Psikologi Fakultas Psikologi Universitas Mercubuana Jakarta Vol 10, No 1 (2026): VOL. 10 NO. 1 April 2026
Publisher : Universitas Mercu Buana Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/biopsikososial.v10i1.37367

Abstract

Many cases of sibling rivalry, including crimes, are committed by young adults who are usually considered independent, responsible and have good psychological well-being. These cases are caused by parental injustice. Parenting patterns that create sibling rivalry. This study aims to determine whether there is a significant relationship between sibling rivalry and psychological well-being in early adults in Jakarta. The research method used is quantitative with the criteria for male or female, aged 18-29, having at least one sibling and domiciled in Jakarta. Sibling rivalry was measured using the ASRQ Rivalry Subscale (Stocker, 1997), adapted via expert judgment, while psychological well-being used the SPWB (Ryff & Keyes) adapted by Fadhil (2021). The 114 respondents were obtained and analyzed using SPSS and Spearman's rho correlation test. The results showed no significant relationship between sibling rivalry and psychological well-being. This means that higher levels of sibling rivalry do not necessarily increase or decrease psychological well-being, and vice versa. However, in the correlation matrix, sibling rivalry correlated positively with the Positive Relations with Others dimension and negatively with the Personal Growth dimension.
Co-Authors Setiawati Intan Savitri