This study assessed secondborn adolescents' perceptions of changes in the allocation of family resources following their firstborn siblings' departure from home after high school, and whether perceived changes were related to changes over 1 year in secondborns' academic functioning. Participants were secondborn siblings (mean age = 16.58, SD = 0.91) from 115 families in which the older sibling had left the family home in the previous year. Allocation of resources was measured via coded qualitative interviews. Most (77%) secondborns reported increases in at least one type of family resource (i.e., parental companionship, attention, material goods), and many reported an increase in multiple types of resources in the year following their older sibling's departure. Consistent with resource dilution theory, perceptions of increases in fathers' companionship, fathers' attention, and mothers' companionship were related to improvements over time in secondborns' academic functioning.
Keywords: Academic achievement; Dilución de recursos; Family process; Family resources; Family transitions; Hermanos; Logro académico; Parent-adolescent relationships; Proceso familiar; Recursos familiares; Resource dilution; Siblings; Transiciones familiares; 兄弟姊妹; 学业成就; 家庭资源; 家庭转折; 家庭过程; 资源稀释.
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