IQ scores tend to be lowest in which countries?
A)Countries with the highest levels of gluten in the diet
B)Countries in which one political party has been in power for a long time
C)Countries with the coldest weather in the middle of winter
D)Countries with the greatest prevalence of infectious diseases

Question

Quizplus · Accepted Answer

Studies have shown that countries with higher rates of infectious diseases tend to have lower IQ scores. This could be due to the fact that infectious diseases can cause brain damage or impair cognitive development.

IQ Scores Tend to Be Lowest in Which Countries