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Intra-Rater Test-Retest Reliability of a Modified Child Functioning Module, Self-Report Version
Kwok Ng1,2, Piritta Asunta3, Niko Leppä4
1School of Educational Sciences and Psychology, University of Eastern Finland, 80101 Joensuu, Finland.
International Journal of Environmental Research and Public Health
|September 26, 2020
Summary
This study assessed the reliability of a self-reported functional difficulties measure for adolescents. Most items showed good agreement, but self-care and concentration require caution for disability statistics.
Area of Science:
- Population statistics
- Disability research
- Adolescent health
Background:
- Accurate disability prevalence data is crucial, particularly for young adolescents.
- The Washington Group on Disability Statistics uses functional difficulties for reporting, but adolescent self-reporting is underdeveloped.
- This study addresses the need for reliable self-reporting tools for this demographic.
Purpose of the Study:
- To conduct an intra-rater test-retest reliability study on a modified Child Functioning Module for self-reporting functional difficulties.
- To evaluate the reliability of specific items related to daily functioning in young adolescents.
- To inform the use of self-reported functional difficulty measures in population statistics.
Main Methods:
- A modified version of the Child Functioning Module was administered to 74 adolescents with special educational needs in Finland.
- Participants completed the self-report measure twice, with a two-week interval, in a supervised classroom setting.
- Intraclass correlation coefficient (ICC) and Kappa (k) statistics were used to assess item reliability, with interpretation following Landis and Koch and Cohen guidelines.
Main Results:
- The majority of items demonstrated substantial or moderate agreement between test and retest.
- Fair agreement was observed for self-care (ICC = 0.59), concentration (ICC = 0.50), and routine changes (ICC = 0.54).
- Kappa statistics indicated large agreement for behavior control (k = 0.65) and moderate agreement for seeing, walking, and speaking difficulties (k = 0.49).
Conclusions:
- Most items in the self-reported Child Functioning Module are suitable for use in a scale format for measuring adolescent functional difficulties.
- Caution is advised when using self-care and concentration items as dichotomous variables due to fair agreement.
- The findings support the potential utility of this modified module for enhancing adolescent disability statistics.
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