ABSTRACT
Psychologists view behaviour-all kinds of behaviour and not just addictions-as determined by a multitude of factors. A list of factors that needs to be taken into account in explaining behaviour is presented Table 2.1. Our understanding of behaviour is not fixed upon any one factor, but acknowledges this range of influences operating simultaneously. Looking at this list, it should be quite obvious that the influences that determine behaviour will vary from one person to the next, and will vary for any one person over time. The influence of these broad factors can be readily illustrated in relation to substance use.
