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The Role of the Relationship Between Siblings and Adults With Intellectual Disability
Stanisława Byra1, Katarzyna Ćwirynkało1
1Stanisława Byra, Maria Curie-Skłodowska University, Lublin, Poland; and Katarzyna Ćwirynkało, University of Warmia and Mazury in Olsztyn, Poland.
Intellectual and Developmental Disabilities
|September 28, 2025
Summary
Siblings of adults with intellectual disability experience loneliness, impacting life satisfaction. The quality of the sibling relationship significantly influences this connection, offering insights for support professionals.
Area of Science:
- Psychology
- Social Sciences
Background:
- Siblings of individuals with intellectual disabilities (ID) may face unique challenges.
- Understanding the psychosocial well-being of these siblings is crucial for targeted support.
Purpose of the Study:
- To investigate the relationship between loneliness and life satisfaction in siblings of adults with ID.
- To explore the mediating and moderating role of the sibling relationship quality in this association.
Main Methods:
- A quantitative study involving 103 siblings of adults with intellectual disabilities.
- Utilized questionnaires to assess loneliness, life satisfaction, and sibling relationship quality.
Main Results:
- A significant inverse relationship was found between loneliness and life satisfaction.
- The quality of the relationship with the sibling with a disability partially explained the association between loneliness and life satisfaction.
Conclusions:
- The sibling relationship quality is a key factor influencing the well-being of siblings of adults with ID.
- Findings can inform professionals in developing interventions for this population.
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