Reliability and validity of the Integrated Wisdom Scale (long‐ and short‐form) for adolescents in a Chinese sample

Abstract Adolescence is crucial for wisdom development, yet it lacks measurement tools. According to the two‐dimensional theory of wisdom that integrates virtue and wit, wisdom was conceptualized as a 6 second‐order 10‐factor structure and measured by the revised integrated wisdom scale (IWS‐R). The present study aims to verify the reliability and validity of IWS‐R in Chinese adolescents and to develop a simplified version for educational application. In study 1, a total of 4182 participants from China (ages 10–17 years, 54.13% boys) completed the 30‐item IWS‐R and criterion scales. Four weeks later, participants volunteered for a second survey for test–retest reliability analysis and longitudinal invariance testing. In study 2, we developed a short version of the 10‐item revised Integrated Wisdom Scale (IWS‐10) using genetic algorithms. Overall, the present study shows that both IWS‐30 and IWS‐10 have good reliability and validity among Chinese adolescents, which will contribute to the empirical research of wisdom psychology in the future.