Validation of the Korean Version of the Teamwork Quality (TWQ) Scale and its Factors Affecting Employees' Job Performance

Background Despite its increasing use in South Korean research, the Teamwork Quality (TWQ) scale has often been modified without proper validation, raising concerns about its reliability and consistency. Given the growing importance of teamwork, validating the Korean version of the 20-item TWQ scale is essential for accurate assessment. Additionally, while TWQ is known to influence job performance, few studies have examined this relationship using a single-construct measure focused on in-role behaviors, highlighting the need for a more precise and standardized approach. Objectives This study aimed to enhance the understanding of TWQ by first validating the Korean version of a 20-item TWQ measurement tool and then examining the relationship between TWQ factors and job performance, focusing on in-role behaviors across various organizations in South Korea. Methods A total of 266 employed adults in South Korea participated in the study. Confirmatory factor analysis was conducted to evaluate the validity and applicability of the translated TWQ scale in the Korean context. Multiple regression analysis examined the overall relationship between TWQ factors and job performance, as well as the unique contribution of each factor while considering their interdependencies. Results The Korean TWQ scale showed strong construct validity and reliability and acceptable convergent validity, though coordination and mutual support overlapped in discriminant validity. Four dimensions, effort, cohesion, balanced contributions, and communication, significantly influenced perceived job performance. Conclusion Organizations can use the validated TWQ scale to assess team dynamics, identify strengths, and enhance collaboration. Furthermore, prioritizing effort, cohesion, balance of contributions, and communication can foster a more effective work environment and improve job performance.