Validity and reliability study of the Clinically Aligned Pain Assessment Scale in Turkish population

Area of Science:

• Pain Management
• Clinical Psychology
• Health Services Research

Background:

• The Clinically Aligned Pain Assessment (CAPA) Scale is a crucial tool for multidimensional pain assessment.
• Cultural adaptation and validation of assessment tools are essential for diverse patient populations.
• Turkish patients require a culturally validated instrument for accurate pain evaluation.

Purpose of the Study:

• To translate the CAPA Scale into Turkish (CAPA-TR).
• To perform cultural adaptation of the CAPA Scale for Turkish patients.
• To evaluate the validity and reliability of the CAPA-TR in Turkish patients.

Main Methods:

• Standardized forward-backward translation procedures were employed.
• Cross-sectional study with 105 Turkish patients experiencing chronic pain.
• Reliability assessed via internal consistency (Cronbach's alpha=0.859) and test-retest (ICC=0.959).
• Construct validity explored through factor analysis; convergent validity examined against Numeric Rating Scale (NRS).

Main Results:

• The CAPA-TR demonstrated excellent internal consistency and test-retest reliability.
• Exploratory factor analysis confirmed a single-factor structure, explaining 66.2% of variance.
• Item-total correlations exceeded 0.30, with acceptable floor and ceiling effects.
• No significant correlation was observed between CAPA-TR and NRS scores.

Conclusions:

• The CAPA-TR is a valid and reliable multidimensional tool for pain assessment in Turkish-speaking individuals.
• This validated scale offers a practical, patient-centered method for comprehensive pain evaluation.
• The CAPA-TR can significantly improve pain assessment in Turkish clinical practice.