Race: Can We See It In Our DNA?

Intelligence Debate

The debate over intelligence differences between races is a contentious topic, with some claiming that genetic factors play a role. Prof. Joseph L. Graves Jr. shares his experiences with racial prejudice in academia, highlighting the flawed notion that certain races are inherently more intelligent due to evolutionary pressures 1. He emphasizes that no scientific evidence supports the idea that living in colder climates, like northern Europe, made people smarter than those in warmer regions 1. Prof. Jelte Wicherts, an expert in psychological methods, explains that while IQ tests show differences in scores between races, they do not necessarily measure innate intelligence 2.

The idea here is that people who lived in cold places, like northern Europe, had to work out how to survive in this hostile environment, so only the smart made it.

--- Prof. Joseph L. Graves Jr.

Wicherts argues that these tests may be biased, as they are often written by white individuals, potentially skewing results in favor of white test-takers 2.

   

Environmental Impact

Environmental factors significantly influence IQ disparities observed between races. Prof. Jelte Wicherts notes that factors such as education, neighborhood quality, and exposure to harmful substances like lead can impact IQ scores 3. These environmental influences are more prevalent among African Americans, contributing to the observed IQ gap 3. Despite claims of genetic differences, no evidence supports the existence of an "intelligence gene" that varies by race 3.

We hardly know what's going on. Doesn't make much sense to say that this was predetermined at birth.

--- Prof. Jelte Wicherts

Wicherts emphasizes that controlling for environmental factors is crucial to understanding true intelligence differences, if any exist 4.