Item analysis of the KIDSCREEN-10 using Rasch modelling
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RESEARCH
Item analysis of the KIDSCREEN‑10 using Rasch modelling Marianne Müller1,2* and Andrea Haenni Hoti1
Abstract Aim: To test the psychometric properties of the KIDSCREEN-10. Background: It is important to assess mental health and well-being in children for an early detection of psychological problems or hidden morbidities. There is limited knowledge about the psychometric quality of the reduced version of the KIDSCREEN questionnaire with only 10 items. Methods: Analysis of psychometric properties was done by fitting Rasch models and graphical loglinear Rasch models to data collected in a study on acculturation of primary school children and their teachers in 2017. Results: The data did not fit a Rasch model but did fit a graphical loglinear Rasch model. There was local dependence for four item pairs and differential item functioning for gender and citizenship. Conclusions: The KIDSCREEN-10 provides essentially valid measurements of health-related quality of life in children if local dependency and dif ferential item functioning are taken into account. Reliability and targeting were less than satisfactory, especially for certain subgroups but reliability was adequate for most groups. Keywords: KIDSCREEN-10, Rasch model, Psychometric evaluation Introduction There has been a growing interest in assessing health and well-being in children and adolescents in the last decades. Early identification of mental health problems and lower subjective well-being of children and adolescents at risk for psychological problems or with hidden morbidity is important for appropriate early interventions. At least 30 instruments for measuring generic health-related quality of life (HRQoL) are available for use with children [1]. KIDSCREEN is among the instruments receiving the most attention. The questionnaires have been translated to at least 38 languages and have been used in more than 50 clinical and epidemiological studies and other research projects. KIDSCREEN is designed to assess
*Correspondence: [email protected] 2 School of Engineering, Zurich University of Applied Sciences, Rosenstr. 3, 8400 Winterthur, Switzerland Full list of author information is available at the end of the article
mental health and well-being in children and adolescents aged from 8 to 18 years [2]. The KIDSCREEN project was funded by the European Commission. It took place from 2001 until 2003 and included participants of 13 European countries. The development of the questionnaires was based on literature reviews, expert discussions and children’s focus groups in all participating countries. There are three different self-report versions with 52, 27 and 10 items, which are scored on a 5 point scale ranging from never/not at all to always/extremely. Responses were coded so that higher values indicate better HRQoL. The KIDSCREEN-52 consists of 52 items in ten dimensions: physical well-being, psychological well-being, moods and emotions, self-perception, autonomy, parent relations and home life, social support an
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