Evidence for a specific-abilities approach to intelligence includes the
a. large contribution of genetics to intelligence.
b. large improvements in IQ performance that has occurred over the last 100 years.
c. occurrence of savant behavior.
d. tendency for very bright students to excel in all subjects.
Question 2
In a given population the mean IQ is 100 and the standard deviation is 15 points. What percent of that population should have an IQ that falls between 85 and 115?
a. 33
b. 51
c. 68
d. 77