TABLE A1.
The included articles.
| Author | N | Title | Journal | % Girls | Mean age | Region | Measure |
| Randjelovic et al. (2021) | 200 | Parental educational styles as predictors of perfectionism and quality of sibling relationships among students | Psychological Applications and Trends | 50% | 21 | Europe | KOBS |
| Yu and Gamble (2008) | 130 | Pathways of Influence: Marital Relationships and Their Association with Parenting Styles and Sibling Relationship Quality | Journal of Child and Family Studies volume | 53% | 4.6 | America | PEPC-SRQ |
| Yan et al. (2021) | 373 | The influence of parenting style on sibling relations among children aged 4–6 in rural areas in Northern China–a regression model | European Early Childhood Education Research Journal | 69.44% | 5.39 | Asia | SRQ |
| Casey (1997) | 93 | The relationship between parental intervention into sibling conflict and the quality of children’s sibling relationships | Mater Degree Thesis of California State University | 43% | 10.3 | America | SRQ |
| Bayram (2014) | 172 | What determines the siblings conflict resolution strategies of adolescents? Parents, siblings, or temperament? | Master Degree Thesis of Middle East Technical University | 100% | 15.03 | Europe | RCR |
| Brody et al. (1994) | 142 | Contributions of Family Relationships and Child Temperaments to Longitudinal Variations in Sibling Relationship Quality and Sibling Relationship Styles | Journal of Family Psychology | 45.07% | 8 | Europe | SRQ |
| Meunier et al. (2011) | 119 | Externalizing behavior trajectories: The role of parenting, sibling relationships and child personality |
Journal of Applied Developmental Psychology | 21.85% | 3.9 | Europe | SIB |
| Howe et al. (2011) | 40 | Sibling Relationship Quality in Early Adolescence: Child and Maternal Perceptions and Daily Interactions | Infant and Child Development | 45% | 11.5 | America | SRQ |
| Dunn et al. (1999) | 3681 | Siblings, Parents, and Partners: Family Relationships within a Longitudinal Community Study | The Journal of Child Psychology and Psychiatry and Allied Disciplines | 48.3% | 7.3 | Europe | SRI |
| Zheng et al. (2020) | 788 | The Relationship Between non-only-children High Grade Pupils’ Parenting Styles and Sibling Relationship in The two-child Policy Context: The Mediating Effect of Theory of Mind | Psychological Exploration | 52.03% | 11.32 | Asia | S1RQ |
| Du (2020) | 181 | Impact of parential rearing patterns on sibling relationships in firstborn children | Master Degree Thesis of Central China Normal University | 38.12% | 4.99 | Asia | PEPC-SRQ |
| Li (2019) | 109 | Firstborn Children’s Jealousy and Capability of Emotion Regulation in Sibling Relationships: The Regulating Effect of Fathering Pattern | Master Degree Thesis of China West Normal University | 55.96% | 9.79 | Asia | Other |
| Yang (2020) | 882 | The characteristics and related factors of emotional and behavioral problems of preschool firstborn children during transition to siblinghood in Chongqing | Master Degree Thesis of Chongqing Medical University | 54.89% | 3.58 | Asia | Other |
| Han (2020) | 1365 | Research on Sibling Relationship of First-born Young Children in Two-Child Families | Master Degree Thesis of Northeast Normal University | 61.70% | 5.16 | Asia | SRQ |
| Su et al. (2022) | 649 | The influence of parenting style on sibling relationship among young children | The Family Education of China | 46.40% | 4.37 | Asia | PEPC-SRQ |
| Wang (2020) | 1493 | Adolescent sibling violence: the influence of family factors |
Master Degree Thesis of Hunan Agricultural University | 49.97% | 12.84 | Asia | SBQ |