found that internals are more likely to take positive action to change their jobs (rather than merely talk about occupational change) than externals. Locus of control relates to a wide variety of work variables, with work-specific measures relating more strongly than general measures. In Educational setting, some research has shown that students who were intrinsically motivated had processed reading material more deeply and had better academic performance than students with extrinsic motivation. Consumer research Locus of control has also been applied to the field of consumer research. For example, Martin, Veer and Pervan (2007) examined how the weight locus of control of women (i.e., beliefs about the control of body weight) influence how they react to female models in advertising of different body shapes. They found that women who believe they can control their weight ("internals"), respond most favorably to slim models in advertising, and this favorable response is mediated by self-referencing. In contrast, women who feel powerless about their weight ("externals"), self-reference larger-sized models, but only prefer larger-sized models when the advertisement is for a non-fattening product. For fattening products, they exhibit a similar preference for larger-sized models and slim models. The weight locus of control measure was also found to be correlated with measures for weight control beliefs and willpower. Political ideology Locus of control has been linked to political ideology. In the 1972 U.S. presidential election, research of college students found that those with an internal locus of control were substantially more likely to register as a Republican, while those with an external locus of control were substantially more likely to register as a Democratic. A 2011 study surveying students at Cameron University in Oklahoma found similar results, although these studies were limited in scope. Consistent with these findings, Kaye Sweetser (2014) found that Republicans significantly displayed greater internal locus of control than Democrats and Independents. Those with an internal locus of control are more likely to be of higher socioeconomic status, and are more likely to be politically involved (e.g., following political news, joining a political organization) Those with an internal locus of control are also more likely to vote. Familial origins The development of locus of control is associated with family style and resources, cultural stability and experiences with effort leading to reward. Many internals have grown up with families modeling typical internal beliefs; these families emphasized effort, education, responsibility and thinking, and parents typically