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Development and psychometric validation of the interRAI ChYMH externalizing subscale
Chloe Lau1, Shannon L Stewart2, Donald H Saklofske1
1Faculty of Social Sciences, Western University, London, ON, Canada.
Clinical Child Psychology and Psychiatry
|October 17, 2020
Summary
The interRAI Child and Youth Mental Health (ChYMH) externalizing subscale demonstrates strong reliability and validity for assessing behavioral disturbances in youth. This validated tool supports accurate measurement of externalizing behaviors across diverse mental health settings.
Area of Science:
- Child and Adolescent Psychiatry
- Psychometric Validation
- Mental Health Assessment Tools
Background:
- The interRAI Child and Youth Mental Health (ChYMH) is a standardized tool used in over 60 agencies.
- It facilitates smooth transitions within public healthcare sectors.
- Reliable assessment of externalizing behaviors is crucial for effective youth mental health services.
Purpose of the Study:
- To develop and assess the reliability and validity of the externalizing subscale of the interRAI ChYMH instrument.
- To evaluate the content validity, internal consistency, and structural validity of the subscale.
- To examine the convergent validity of the subscale with other established measures.
Main Methods:
- Expert panel review (doctoral-level psychologists) for content validity of externalizing behavior items.
- Unrestricted factor analyses on a large sample (N=3,464) of children and youth (ages 4-18) from 39 mental health agencies.
- Bayesian correlations to assess associations with established externalizing behavior, anger, and disruptive behavior measures.
Main Results:
- The externalizing subscale exhibited strong content representativeness and high internal consistency.
- Good structural validity was found for a two-dimensional model (reactive and proactive externalizing behavior).
- Strong associations were observed with externalizing subscales and related measures from instruments like the Beck Youth Inventories and Child Behavior Checklist.
Conclusions:
- The interRAI ChYMH externalizing subscale demonstrates robust measurement properties.
- The subscale is reliable and valid for assessing behavioral disturbances in children and youth.
- This validated tool can enhance the assessment and management of externalizing behaviors in mental health settings.
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