A.
Staying in school really can make you smarter. A new study from Norway finds that students who (67) in school longer than their counterparts have higher IQ (Intelligence Quotient)scores.
B.
In the mid-1950s, the Norwegian government began (68) students to (69) school until they were 16 years old, (70) than allowing them to drop (71) at 14.
C.
Communities had until 1972 to (72) in the compulsory education reform, which meant that, for nearly 20 years, youngsters in some municipalities (自治 区) went to school for seven years and others attended classes for at least nine years.
D.
That gave Taryn Ann Galloway a (73) opportunity to see what impact the extra two years of education had (74) the intellectual (75) of students. Galloway, a researcher at the University of Oslo, explains that all young men in Norway are required to (76) a cognitive (77) ,or IQ test,for the military (78) at age 19.
E.
So, she and her colleagues were able to sift (筛选) (79) data on 107,000 draft-age young men, correlating their years of education (80) their IQ scores (81) by the military.
F.
The (82) IQ score on the intelligence test is 100, with most of the population (83) somewhere between 85 and 115 on the (84)
G.
"The young men who were forced to stay in school for two years longer (85) did have higher IQs," Galloway says. Students who got a full two years of extra schooling showed an IQ (86) of more than 7 points. "I think it’s because you do learn general thinking skills at school and you are able to practice them." according to Galloway.