After Jean was told by one of her professors that she would never succeed in law school, she stopped reading and completing her assignments. Eventually Jean did drop out of law school. This is an example of .

self-fulfilling prophecy

Explanation:

A self-fulfilling prophecy is a phenomenon that occurs when the proclamation or prediction that are originally false which is made by someone regarding an individual, eventually happens, as the false prediction makes the individual to actually act out the expectation or prediction. The prophecy or prediction only happened simply because the individual holds the belief that it would , hence, acting in ways that actually leads to the manifestation of the false belief or expectation.

The prediction of one of Jean’s Professors came to pass, because Jean holds it, leading to her acting in ways that makes the prediction come to pass. Jean stopped reading and completing her assignments which eventually made her not to succeed in law school. Jean’s case is an example of self-fulfilling prophecy.

when the united states took over

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.