Reference Identification

Discriminant validity, responsiveness and reliability of the rheumatoid arthritis-specific Work Productivity Survey (WPS-RA).

Arthritis Research & Therapy, Osterhaus JT, Purcaru O, Richard L. dis 2009; 11:R73
Country: Austria, the Czech Republic, and the US
Language: German/Czech/English
https://arthritis-research.biomedcentral.com/articles/10.1186/ar2702

Other references of interest

http://www.ncbi.nlm.nih.gov/pubmed/22588755

 Tang et al. (2011): Measures of work disability and productivity: Rheumatoid Arthritis Specific Work Productivity Survey (WPS-RA), Workplace Activity Limitations Scale (WALS), Work Instability Scale for Rheumatoid Arthritis (RA-WIS), Work Limitations Questionnaire (WLQ), and Work Productivity and Activity Impairment Questionnaire (WPAI).

Instrument/Tool Translations References

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