Locus of control refers to the extent to which someone believes that they have control over- and responsibility fro- their lives rather than attributing outcomes to external factors.
Rotter designed a scale to measure locus of control which assesses the extent to which someone uses a predominantly internal or external locus of control.
High internallocus of control is evident in people who feel they have control over their lives and responsibility for their behaviour.
People with a high internallocus of control can resist pressure to conform and obey as they adhere to a high set of standards that they have designated themselves.
People with a high internallocus of control tend to be self-confident, intelligent and achievement-orirentated
High externallocus of control is evident in people who feel that they have no control over their lives and assume a lack of responsibility for their behaviour.
People with a high externallocus of control are less able to resist pressure to conform and obey as they believe that other external factors determine the outcomes.
People with a high external locus of control tend to lack confidence, feel insecure and have high need for social approval.
There is strong research supporting locus of control. Holland repeated Milgrams experiment and found that 37%of participants who refused to continue to 450 volts had a high internal locus of control compared to 24% who had a high external locus of control.
Rotter pointed out that locus of control only seems to apply in new situations. If someone has previously obeyed/conformed in one specific situation, they will likely do so again, regardless of their level of lucus of control.