are less self-confident about their perspective and are more defensive about them may prefer proattitudinal information over materials that challenge their perspectives. (see also Byrne, 1961; Olson & Zanna, 1982b; for related views in other domains, see Tesser, 2001). Relationship to social influences An individual's self-confidence can vary in different environments, such as at home or in school, and with respect to different types of relationships and situations. In relation to general society, some have found that the more self-confident an individual is, the less likely they are to conform to the judgments of others. Leon Festinger found that self-confidence in an individual's ability may only rise or fall where that individual is able to compare themselves to others who are roughly similar in a competitive environment. Furthermore, when individuals with low self-confidence receive feedback from others, they are averse to receiving information about their relative ability and negative informative feedback, and not averse to receiving positive feedback. People with high self-confidence can easily impress others, as others perceive them as more knowledgeable and more likely to make correct judgments, despite the fact that often a negative correlation is sometimes found between the level of their self-confidence and accuracy of their claims. When people are uncertain and unknowledgeable about a topic, they are more likely to believe the testimony, and follow the advice of those that seem self-confident. However, expert psychological testimony on the factors that influence eyewitness memory appears to reduce juror reliance on self-confidence. People prefer leaders with greater self-confidence over those with less self-confidence. Heterosexual men who exhibit greater self-confidence relative to other men more easily attract single and partnered women. Salespeople who are high in self-confidence tend to set higher goals for themselves, which makes them more likely to stay employed, yield higher revenues, and generate higher customer service satisfaction. Self-confident leaders tend to influence others through persuasion instead of resorting to coercive means. They are more likely to resolve issues by referring them to another qualified person or calling upon bureaucratic procedures (organizational policies, regulations, etc.), which avoid personal involvement. Others suggest that self-confidence does not affect leadership style but is only correlated with years of supervisory experience and self-perceptions of power. Variation in different categorical groups Social scientists have discovered that self-confidence operates differently in different categories of people. Children Zimmerman claimed that if children are self-confident they can learn they are more likely