Development of the Conceptualization of Pain Questionnaire: A Measure to Study How Children Conceptualize Pain

Isabel Salvat, Cristina Adillón, Eva Maria Andrés, Sonia Monterde, Jordi Miró, Isabel Salvat, Cristina Adillón, Eva Maria Andrés, Sonia Monterde, Jordi Miró

Abstract

(1) Background: Research has shown that thoughts about pain are important for the management of chronic pain in children. In order to monitor changes in thoughts about pain over time and evaluate the efficacy of treatments, we need valid and reliable measures. The aims of this study were to develop a questionnaire to assess a child's concept of pain and to evaluate its psychometric properties; (2) Methods: This is a cross-sectional, two-phase, mixed-method study. A total of 324 individuals aged 8 to 17 years old responded to the newly created questionnaire. The Conceptualization of Pain Questionnaire (COPAQ) was calibrated using the Rasch model. The chi-square test was used for the fit statistics. Underfit and overfit of the model were determined and a descriptive analysis of infit and outfit was conducted to identify who responded erratically. Internal consistency was measured using the Person Separation Index (PSI); (3) Results: Fit to the Rasch model was good. Suitable targeting indicated which items were simple to answer; Person Fit identified 9.56% children who responded erratically; PSI = 0.814; (4) Conclusions: The findings suggest that COPAQ is a measure of a child's concept of pain that is easy to administer and respond to. It has a good fit and a good internal consistency.

Keywords: children; chronic pain; health knowledge; pain education; survey.

Conflict of interest statement

The authors declare no conflict of interest.

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