How Stereotypes Defeat the Stereotyped.

STEREOTYPE THREAT

When some members of stigmatized are faced with stressful situations, expect themselves to do worse. And through these expectations it produces stress and threaten cognitive function, which is called the 'stereotype threat.'

This effect usually occurs in a variety of aged difference, and it dampens their performance. The purpose of the stereotype threat was to examine the aging effects on memory. From the experiment, we have known that people who have just entered their seventh decade are more sensitive to stereotype threat than those who have already been considered old for a decade. We can also notify that the power of stereotype is so strong that it can overwhelm many of our other traits, and your only as good as you expect to be. 

However, the good news is that research has shown that positive stereotype reinforcement may be just as powerful as any negative threat. 

From this we can impact this question. Are these lies? sure. They are psychological equivalent of political spun. The cold facts are that as you age, you will begin to lose your capacity for working memory, just as you will lose muscle mass, eye strength and balance. We call this aging, and none of us will escape it. But the new study reminds us of the power of belief; people can be persuaded to believe either positive or negative stereotypes, and it can have a real impact on their performance in life. 

For example, Women perform worse on math tests when they think the test will produce gender differences. (Spencer, Steele, & Quinn, 1999)