According to an academic study by Bruno S.Frey and Alois Stutzer,life satisfaction has:
A)Increased dramatically between 1958 and 1991
B)Remained approximately level between 1958 and 1991
C)Decreased dramatically between 1958 and 1991
D)Increased dramatically between 1958 and 1974,and then decreased dramatically
E)Decreased dramatically between 1958 and 1974,and then increased dramatically

Question

Quizplus · Accepted Answer

The question doesn't provide any further information about the time period after 1991. The study conducted by Bruno S.Frey and Alois Stutzer only measured life satisfaction between 1958 and 1991. Therefore, the only valid answer is B, which states that life satisfaction remained approximately level between 1958 and 1991.

According to an Academic Study by Bruno S