This module provides an overview of a central area of psychology known as “individual differences” or “differential psychology”. In this module, you will learn about personality, intelligence, temperament and psychopathology. We will also explore the proposed causes and effects of these individual differences drawing from research using approaches from humanistic theory to behavioural genetics. Finally, we will explore the evidence behind several key controversies in individual differences including the continuum between personality and mental health, the nature vs nurture debate, race differences in intelligence and genetic determinism.