Introduction

Rebecca Weidmann: Welcome to the Personality Psychology podcast. Chris Hopwood is a professor at the University of Zurich in Switzerland and an expert in the field of personality and psychopathology. It's snowing outside where I'm at and that reminds me a little bit of Christmas which we just had. So I'm going to take a Dickensian approach to this and talk about ghosts. The ghost of Christmas past in personality and Psychopathology is polythetic diagnostic categories.