Validation of the Korean version of the Posttraumatic Growth Inventory using the Rasch model.

Key Points

• This research aims to validate the Korean version of the Posttraumatic Growth Inventory (K-PTGI) and improve its accuracy.
• Conducted validation of K-PTGI using the Rasch model.
• Analyzed the validity of the instrument in measuring posttraumatic growth.
• Identified areas for improvement, particularly in spiritual items and item difficulty.
• K-PTGI shows strong validity overall.
• Recommendations for future revisions include adjusting spiritually themed items.
• Need for easier items to better reflect early posttraumatic growth.