ABSTRACT
To say the least, it is quite common that a large number of students starting an undergraduate degree in psychology are not enthusiastic about having to study statistics and research methodology. It is highly possible that this lack of enthusiasm originates, at least in part, from the unappreciation of the relevance that statistics plays in the scientific understanding of human behaviour. The aim of this introduction is to provide a convincing argument, using a simple example, as to why some statistical knowledge is useful to students in the behavioural sciences.
