OBJECTIVE To evaluate an integrated group intervention for siblings and parents designed to increase sibling understanding of and adjustment to chronic illness and developmental disability (CI/DD). METHODS Fifty-four well siblings (ages 8-13 years) and their parents were recruited through hospital-based and community agencies serving children with CI/DD. Measures of sibling knowledge, sibling...

BACKGROUND Parents are often concerned about repeated conflicts between their daughters and sons. However, there is little empirical research of sibling bullying. OBJECTIVE To conduct a review of existing studies of sibling bullying. Are there any associations between sibling bullying and peer bullying at school? What are the consequences of sibling bullying? Is there good justification why s...

The sibling relationship constitutes the longest lasting family tie, beginning with the birth of the younger sibling and ending with the death of one member of the sibling pair. Siblings share a common family heritage, both genetically and experientially, and perhaps for this reason, the sibling relationship is normatively characterized as egalitarian, reciprocal, and mutual. How is the sibling...

BACKGROUND AND PURPOSE We sought to determine pedigree availability for a concordant sibling pair study of genetic risk factors in ischemic stroke. METHODS Probands with confirmed ischemic stroke were prospectively enrolled. Family histories were obtained by systematic interview. A study neurologist prospectively assigned stroke subtype. RESULTS Of 310 probands (median age, 75 years; range,...

The allocation of parental investment is a potential source of conflict within broods whenever offspring are able obtain differential access to the parental resource. Unlike the provisioning of food, parental antipredator behavior is usually considered a resource that benefits all offspring simultaneously. In the thornbug treehopper (Umbonia crassicornis), offspring form aggregations in exposed...