Answer:
15 points higher
Explanation:
The Flynn Effect is a phenomenon that the increase in IQ over the ages is an increase in overall abstract problem solving rather than actual intelligence, and are attributed to the environment in which younger generations are surrounded by compared to older generations. According to this effect an average 18-year old scored 15 points higher than that of someone 60 years ago.
**I had this question and studied the Flynn Effect in high school**
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