http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2788.2011.01393.x/full
A study in the January 2012 issue of Journal of Intellectual Disability Research by researchers affiliated with Ghent University (Belgium) examined quality of life from a sibling, rather than a family perspective, using in-depth interviews. Authors report that siblings’ definitions of quality of life differ from a family quality of life concept. Full text is available at no cost.