This study examined the longitudinal associations between perception of sibling relationship quality (i.e., sibling warmth and conflict) and sibling influence (i.e., sibling modeling and differentiation), as well as the potential moderating role of birth order among Chinese adolescents. Participants were 150 adolescents (M[subscript age] = 12.84…

This observational study focuses on prosocial behaviors of children with autism spectrum disorder (ASD) during an interaction with their older, typically developing sibling (TD-Sibs). Twenty-eight sibling dyads, in which the younger sibling was diagnosed with ASD (ASD-Sibs), were video-recorded at home playing a game of their choice. Video…

We examined profiles of sibling relationship qualities in 246 Mexican-origin families living in the United States using latent profile analyses. Three profiles were identified: "Positive," "Negative," and "Affect-Intense." Links between profiles and youths' familism values and adjustment were assessed using…

Sharing is an important indicator of internalised prosocial values. We examined predictors of sharing of 302 preschoolers with their younger siblings in a one-year longitudinal study. Sharing was observed during different home visits, once with father and once with mother. We examined the following predictors: both children's externalising…

This study investigates the relationship between having an older sibling and early goal-directed motor development. In a longitudinal study, infants were filmed playing with their mother and were observed at 5 and 12 months of age. After each observation, they were assessed with the Mental Bayley Scale. From the mother-child interaction, playing…

This study investigates whether preschool-aged children show consistent patterns of behaviour in conflicts with their siblings. Consistency was assessed at the nomothetic (i.e., group), idiographic (i.e., individual), and idiosyncratic (i.e., consistent patterns that differed from the norm) levels. We examined conflicts between 19 2-year-old and…

We first examined how war-related traumatic events impact on peer and sibling relations, and how the quality of these relations in turn are associated with children's mental health, indicating a mediation model. Second, we tested the moderating (protective) effects of good peer and sibling relations in attenuating the link between trauma and…

Siblings' constructive and unstructured shared activities were examined as moderators of the links between first- and second-born siblings' adjustment across a two-year period in adolescence. Siblings (N = 189 dyads) reported on their depression, peer competency, self worth during home interviews, and their time together in constructive (e.g.,…