ABSTRACT

Scientific investigation of humans can be broadly categorised into ‘laboratory’ and ‘field’ studies. Results from these studies can be used to develop or test theoretical models. Laboratory studies are generally designed to be performed under controlled conditions where as many relevant variables as possible are controlled, or at least monitored. Field studies are usually designed to study the human in context, where it is generally impossible and/or undesirable to control all relevant variables, although these are often monitored.