Item analysis of the KIDSCREEN-10 using Rasch modelling
Marianne Müller1,2, Andrea Haenni Hoti3
1University of Teachers Education, Lucerne, Switzerland. marianne.mueller@zhaw.ch.
Health and Quality of Life Outcomes
|October 16, 2020
Summary
The KIDSCREEN-10 questionnaire offers valid health-related quality of life measurements for children. However, psychometric properties like reliability and targeting require careful consideration of local dependency and differential item functioning.
Area of Science:
- Pediatric Health
- Psychometrics
- Child Psychology
Background:
- Assessing child mental health is crucial for early detection of psychological issues.
- Limited data exists on the psychometric quality of the 10-item KIDSCREEN questionnaire.
Purpose of the Study:
- To evaluate the psychometric properties of the KIDSCREEN-10.
- To assess the validity and reliability of the KIDSCREEN-10 for child populations.
Main Methods:
- Rasch models and graphical loglinear Rasch models were applied.
- Data from a 2017 study on primary school children's acculturation was used.
Main Results:
- The data fit a graphical loglinear Rasch model, not a standard Rasch model.
- Local dependence was found in four item pairs.
- Differential item functioning was observed for gender and citizenship.
Conclusions:
- The KIDSCREEN-10 provides largely valid health-related quality of life data in children.
- Accounting for local dependence and differential item functioning is necessary for accurate interpretation.
- Reliability and targeting were suboptimal for specific subgroups, though generally adequate.
