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01-05-2011 | Uitgave 4/2011

Quality of Life Research 4/2011

Content identification of the IWQOL-Lite with the International Classification of Functioning, Disability and Health

Quality of Life Research > Uitgave 4/2011
Annie Tessier, Nancy E. Mayo, Alarcos Cieza
Belangrijke opmerkingen
Annie Tessier developed the specific research questions pertaining to the study, conducted the consensus exercise, performed the statistical analysis, and wrote the manuscript. Nancy E Mayo directed Annie Tessier to the topic, provided expertise in research methodology, analytical decisions, and substantial input in the editing. Alarcos Cieza carried the study that was used to validate the present mapping and contributed to the revision of the manuscript.



The identification of the content of a measure could ensure that the most appropriate measure is chosen to meet a particular objective. Mapping the Impact of Weight on Quality Of Life (IWQOL-Lite) to the International Classification of Functioning, Disability and Health (ICF) will improve the understanding of its structure and aid in the interpretation of the results.


A mapping exercise was performed by 21 raters using the Delphi technique to identify the ICF codes that best describe the content of the items of the IWQOL-Lite. Both French and English versions were linked to validate the French translation. The results were validated on a sample of 122 participants and were also compared to the mapping performed by another group.


Most of the content of the IWQOL-Lite was identified. All five components of the ICF were represented in the IWQOL-Lite. The mapping differed across languages. The results of the mapping were similar to those obtained by another group.


The content of the IWQOL-Lite is compatible with the ICF. The measure has good content validity. The content could be improved by the addition and the specification of some terms. The French translation of some items should be revised.

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