Psychometric properties of the Centers for Disease Control and Prevention Health-Related Quality of Life (CDC HRQOL) items in adults with arthritis

Introduction: Otitis media is one of the most prevalent childhood diseases. The impact of otitis media on quality of life of Portuguese children is unknown, because of the unavailability of a tool validated in European Portuguese to assess this consequence of otitis media. The Otitis Media-6 questionnaire (Otitis Media-6) is the most frequently used tool to assess health-related quality of life in children with otitis media. This study aims to create a version in the Portuguese language and culturally adapted to Portugal of the otitis media-6 questionnaire.Material and Methods: The Otitis Media-6 questionnaire was translated and culturally adapted to the Portuguese language and population. Then, to assess the instrument psychometric properties, it was applied to a sample of Portuguese children with chronic otitis media with effusion or recurrent acute otitis media.Results: The Portuguese version of Otitis Media-6 questionnaire demonstrated the following psychometric properties: constructvalidity for baseline (rs = 0.98) and change scores (rs = 0.97), internal consistency (α = 0.780), test-retest reliability (rs = 0.89) and responsiveness to clinical change (t(59) = 10.104).Discussion: The simplicity and brevity of application of the instrument make it ideal for use in research and in clinical practice, enabling a more objective assessment of the extension of the otitis media impact in children quality of life and a more targeted therapeutic decision.Conclusion: The Portuguese version of the Otitis Media-6 questionnaire is a valid, reliable and sensitive instrument to evaluate the health-related quality of life in Portuguese children with otitis media.

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A Polytomous Rasch Analysis of the English Version of Health-Related Quality of Life for Drug Abusers Test

The Spanish Journal of Psychology ◽

10.1017/sjp.2015.34 ◽

2015 ◽

Vol 18 ◽

Author(s):

Oscar M. Lozano ◽

Antonio J. Rojas Tejada ◽

Katia Foresti ◽

Carlos Zubaran

Keyword(s):

Quality Of Life ◽

Psychometric Properties ◽

Rasch Model ◽

Scale Model ◽

Drug Abusers ◽

Health Related Quality ◽

English Version ◽

Related Quality ◽

Health Related

AbstractThe specific aim of this study was to analyze the psychometric properties of the English version of the Health-Related Quality of Life for Drug Abusers Test (HRQoLDA Test) applying the Rasch model, and emphasizing fit between empirical data and theoretical Rasch model assumptions; item(s) category probability curve; and precision in terms of information function. In this study, the authors present the results of the translation and adaptation of the original Spanish version to English, as applied to a sample of substance users in Australia. The authors evaluated 121 adults recruited from inpatient and outpatient treatment facilities in Sydney, Australia. The Rating Scale Model was used in the psychometric analysis of the English version of the HRQoLDA Test. The items and persons revealed a fit between the reported data and the model. It was also demonstrated that respondents did not discriminate among the five response categories, which led to a reduction to three response categories. The adaptation of the TECVASP to the English language, renamed the HRQoLDA test, as developed with an Australian sample revealed adequate psychometric properties.

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