Ask most people how they define the American Dream and chances are they’ll say, "Success." The dream of individual opportunity has been at home in American since Europeans discovered a "new world" in the Western Hemisphere. Early immigrants like Hector St. Jean de Crevecoeur praised highly the freedom and opportunity to be found in this new land. His glowing descriptions of a classless society where anyone could attain success through honesty and hard work fired the imaginations of many European readers: in Letters from an American Farmer (1782) he wrote, "We are all excited at the spirit of an industry which is unfettered (无拘无束的) and unrestrained, because each person works for himself... We have no princes, for whom we toil (干苦力活), starve, and bleed: we are the most perfect society now existing in the world." The promise of a land where "the rewards of a man’s industry follow with equal steps the progress of his la
A. People are free to develop their power of imagination.
B. People who are honest and work hard can succeed.
C. People are free from exploitation and oppression.
D. People can fully enjoy individual freedom.
As they grow older, most people wonder how increasing age will affect intelligence. Can people in middle age and beyond expect to think as effectively and to solve problems as efficiently as they have in the past
One of the difficulties in comparing the intellectual functioning of people at different ages is the problem of cohort((具有相同特征的)一群人) effects. Different age groups in the population have experienced different historical events (wars, exposure to television, and so on) as well as changes in the general standard of living. Different scores that people of varying ages achieve on intelligence tests could be partly due to changes in diet, housing, or health care or, even more likely, to the amount and quality of education. Since the beginning of this century, there has been a trend for more people to go to school and to remain in school longer. Because it eliminates these cohort effects, a longevous (长寿的) study may be the best way to look at age-related changes in inte
A. Cognitive Changes over the Life Span
B. People’s Intellectual Functioning
C. Cohort Effects in the Intelligence Tests
D. Longevous Study of Cognitive Abilities
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