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Health and Quality of Life Outcomes

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Open Access 01-12-2012 | Short report

Item and response-category functioning of the Persian version of the KIDSCREEN-27: Rasch partial credit model

Authors: Peyman Jafari, Zahra Bagheri, Mozhgan Safe

Published in: Health and Quality of Life Outcomes | Issue 1/2012

Abstract

Background

The purpose of the study was to determine whether the Persian version of the KIDSCREEN-27 has the optimal number of response category to measure health-related quality of life (HRQoL) in children and adolescents. Moreover, we aimed to determine if all the items contributed adequately to their own domain.

Findings

The Persian version of the KIDSCREEN-27 was completed by 1083 school children and 1070 of their parents. The Rasch partial credit model (PCM) was used to investigate item statistics and ordering of response categories. The PCM showed that no item was misfitting. The PCM also revealed that, successive response categories for all items were located in the expected order except for category 1 in self- and proxy-reports.

Conclusions

Although Rasch analysis confirms that all the items belong to their own underlying construct, response categories should be reorganized and evaluated in further studies, especially in children with chronic conditions.

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DeMars C: Item response theory. New York, Oxford; 2010.CrossRef

Hays RD, Morales LS, Reise SP: Item response theory and health outcomes measurement in the 21st century. Med Care 2000, 38(9 Suppl):II28-II42.PubMedCentralPubMed

Gothwal VK, Wright TA, Lamoureux EL, Pesudovs K: Rasch analysis of the quality of life and vision function questionnaire. Optom Vis Sci 2009, 86(7):E836-E844. 10.1097/OPX.0b013e3181ae1ec7CrossRefPubMed

Embretson SE, Reise SP: Item Response Theory for Psychologists. Lawrence Erlbaum Associates, New Jersey; 2000.

Ravens-Sieberer U, Auquier P, Erhart M, Gosch A, Rajmil L, Bruil J, Power M, Duer W, Cloetta B, Czemy L, Mazur J, Czimbalmos A, Tountas Y, Hagquist C, Kilroe J, European KIDSCREEN Group: The KIDSCREEN-27 quality of life measure for children and adolescents: psychometric results from a cross-cultural survey in 13 European countries. Qual Life Res 2007, 16(8):1347–1356. 10.1007/s11136-007-9240-2CrossRefPubMed

Erhart M, Ottova V, Gaspar T, Jericek H, Schnohr C, Alikasifoglu M, Morgan A, Ravens-Sieberer U, HBSC Positive Health Focus Group: Measuring mental health and well-being of school-children in 15 European countries using the KIDSCREEN-10 Index. Int J Public Health 2009, 54(Suppl 2):160–166.CrossRefPubMed

Ravens-Sieberer U, Erhart M, Rajmil L, Herdman M, Auquier P, Bruil J, Power M, Duer W, Abel T, Czemy L, Mazur J, Czimbalmos A, Tountas Y, Hagquist C, Kilroe J, European KIDSCREEN Group: Reliability, construct and criterion validity of the KIDSCREEN-10 score: a short measure for children and adolescents’ well-being and health-related quality of life. Qual Life Res 2010, 19(10):1487–1500. 10.1007/s11136-010-9706-5PubMedCentralCrossRefPubMed

Robitail S, Ravens-Sieberer U, Simeoni MC, Rajmil L, Bruil J, Power M, Duer W, Cloetta B, Czemy L, Mazur J, Czimbalmos A, Tountas Y, Hagquist C, Kilroe J, Auquier P, KIDSCREEN Group: Testing the structural and cross-cultural validity of the KIDSCREEN-27 quality of life questionnaire. Qual Life Res 2007, 16(8):1335–1345. 10.1007/s11136-007-9241-1CrossRefPubMed

Ravens-Sieberer U, the KIDSCREEN Group Europe: The KIDSCREEN questionnaires. Quality of life questionnaires for children and adolescents – handbook. Papst Science Publisher, Germany; 2006.

10.

Fayers PM, Machin D: Quality of life: The assessment, analysis and interpretation of patient-reported outcomes. 2nd edition. John Wiley, Chichester; 2007.CrossRef

11.

Court H, Greenland K, Margrain TH: Measuring patient anxiety in primary care: Rasch analysis of the 6-item Spielberger State Anxiety Scale. Value Health 2010, 13(6):813–819. 10.1111/j.1524-4733.2010.00758.xCrossRefPubMed

12.

Luo X, Cappelleri JC, Cella D, Li JZ, Charbonneau C, Kim ST, Chen I, Motzer RJ: Using the Rasch model to validate and enhance the interpretation of the Functional Assessment of Cancer Therapy-Kidney Symptom Index-Disease-Related Symptoms scale. Value Health 2009, 12(4):580–586. 10.1111/j.1524-4733.2008.00473.xCrossRefPubMed

13.

Linacre JM: WINSTEPS® Rasch measurement computer program. Winsteps.com, Beaverton; 2011.

14.

Linacre JM: Optimizing rating scale category effectiveness. J Appl Meas 2002, 3(1):85–106.PubMed

15.

Jafari P, Bagheri Z, Ayatollahi SM, Soltani Z: Using Rasch rating scale model to reassess the psychometric properties of the Persian version of the PedsQLTM 4.0 Generic Core Scales in school children. Health Qual Life Outcomes 2012, 10(1):27. 10.1186/1477-7525-10-27PubMedCentralCrossRefPubMed

16.

Jafari P, Ghanizadeh A, Akhondzadeh S, Mohammadi MR: Health-related quality of life of Iranian children with attention deficit/hyperactivity disorder. Qual Life Res 2011, 20(1):31–36. 10.1007/s11136-010-9722-5CrossRefPubMed

17.

Jafari P, Forouzandeh E, Bagheri Z, Karamizadeh Z, Shalileh K: Health related quality of life of Iranian children with type 1 diabetes: reliability and validity of the Persian version of the PedsQLTM Generic Core Scales and Diabetes Module. Health Qual Life Outcomes 2011, 9: 104. 10.1186/1477-7525-9-104PubMedCentralCrossRefPubMed

Title: Item and response-category functioning of the Persian version of the KIDSCREEN-27: Rasch partial credit model
Authors: Peyman Jafari
Zahra Bagheri
Mozhgan Safe
Publication date: 01-12-2012
Publisher: BioMed Central
Published in: Health and Quality of Life Outcomes / Issue 1/2012
Electronic ISSN: 1477-7525
DOI: https://doi.org/10.1186/1477-7525-10-127

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Item and response-category functioning of the Persian version of the KIDSCREEN-27: Rasch partial credit model

Abstract

Background

Findings

Conclusions

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Findings

Conclusions

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