Open Access. The submitted version of this work has been reproduced here according to the publishers policies.
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This article may be used for personal use only. This is the author’s version of a work that has been submitted for publication in the Journal of Policy and Practice in Intellectual Disabilities, 11(2):117-127, 2014. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms are not be reflected in this document.
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Copyright (2014) International Association for the Scientific Study of Intellectual and Developmental Disabilities and Wiley Periodicals.
Type
journal article
Source
Journal of Policy and Practice in Intellectual Disabilities, 11(2): 117-127