Psychometric Properties of the Full and Short Versions of the Quality of Life Instrument Package: results from the Ontario province-wide study
Results that bear upon the psychometric properties of the Quality of Life Instrument Package are presented. The reliability and validity of quality of life data from a probability sample of 500 persons with developmental disabilities in Ontario were assessed. The data indicate that most of the instruments found in the package met acceptable psychometric standards. In some cases, specific domain scores need to be interpreted with caution. The Full Version of the instrument seems appropriate for ongoing practical program planning with clients. The Short Version seems especially appropriate for evaluation and monitoring purposes.
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