There is still little research on the relationships between adults with intellectual and
developmental disabilities and their typically-developing siblings, despite the importance of
these ties for siblings' psychological well-being, especially in terms of depression, anxiety,
and life satisfaction. In this study, the sibling relationship attitudes of adult siblings of people
with (N= 133) and without (N= 140) intellectual and developmental disabilities were
explored. Feelings, behaviors, and thoughts related to sibling relationships were measured …