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Construct validity of two pain behaviour observation measurement instruments for young children with burns by Rasch
Alette E E de Jong1, Wim E Tuinebreijer, Marco Bremer
1Burn Centre, Red Cross Hospital, Beverwijk, The Netherlands Association of Dutch Burn Centres, Beverwijk, The Netherlands Burn Centre, Martini Hospital, Groningen, The Netherlands Burn Centre, Maasstad Hospital, Rotterdam, The Netherlands Department of Reconstructive and Hand Surgery, VU University Medical Center, Amsterdam, The Netherlands.
Insights
This study validated two pain scales, the Pain Observation Scale for Young Children (POCIS) and the COMFORT Behaviour Scale (COMFORT-B), for pediatric burn patients using Rasch analysis. Both scales effectively measure pain unidimensionally.
Area of Science:
- Pediatric pain assessment
- Psychometrics
- Burn injury research
Background:
- Accurate pain measurement in young children, especially those with burns, is crucial for effective management.
- Existing behavioral observation tools require rigorous validation for specific populations.
- The Rasch model provides a robust framework for assessing measurement instrument properties.
Purpose of the Study:
- To evaluate the construct validity of the Pain Observation Scale for Young Children (POCIS) and the COMFORT Behaviour Scale (COMFORT-B).
- To determine if these instruments measure pain as a unidimensional construct in children aged 1–56 months with burns.
- To confirm the suitability of POCIS and COMFORT-B for scientific research and clinical practice.
Main Methods:
- Rasch analysis was employed to assess the construct validity of the POCIS and COMFORT-B.
- The study included young children (1–56 months) with burn injuries.
- Data were analyzed to determine if the instruments met Rasch model expectations for unidimensionality.
Main Results:
- The Rasch analysis indicated that both the POCIS and COMFORT-B function as unidimensional measures.
- The instruments demonstrated adequate measurement properties for assessing background and procedural pain.
- The findings support the use of these scales in scientific research and clinical settings.
Conclusions:
- The construct validity of the POCIS and COMFORT-B is supported by Rasch analysis in young children with burns.
- These validated instruments can reliably measure pain in this vulnerable population.
- The study confirms the utility of POCIS and COMFORT-B for both research and clinical application in pediatric burn care.
Abstract:
In this study, construct validity of 2 pain behaviour observation measurement instruments for young children aged 1 to 56 months (mean age was 20 months) with burns is assessed by using Rasch analysis. The Rasch model, wherein data should meet the model expectations, assumes that an instrument measures one unidimensional construct, and focuses on the items of measurement instruments. The Pain Observation Scale for Young Children (POCIS) and the COMFORT Behaviour Scale (COMFORT-B) measure background and procedural pain as unidimensional. Adequate measurements for scientific research and daily practice can now be obtained.
