The challenges resulting from increasing digitalization and globalization require flexible continuing education for white‐collar workers. Especially informal learning becomes increasingly important in the modern workplace. Practitioners want to promote informal learning among employees,...

Due to increased empirical interest in narcissism across social sciences, there is a need for inventories that can be administered quickly while also reliably measuring both the agentic and antagonistic aspects of grandiose narcissism. In this study, we sought to validate the factor structure,...