Early literacy and numeracy activities in family and preschool are considered important for promoting children's early literacy and numeracy skills. However, little research exists, especially in Germany, on the frequency of such activities in different contexts. The current study identified...

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,...

In recent years, an increasing number of nationally representative surveys in the social sciences and economics have implemented the Big Five model of personality. While many personality inventories were originally developed in the context of self-administered questionnaires, they are often used...

Although trust is fundamental to social and organizational functioning, the media often portray managers as distrusting, suggesting that distrust of others is a typical personality variable of successful leaders. This study puts the cliché of the distrustful manager to the test. Both selfreport...

Abstract In light of the recent interest in using longitudinal panel data to study personality development, it is important to know if personality traits are related to panel attrition. We analyse the effects of personality on panel drop-out separately for an 'older'; subsample (started in...