In this video I address the question of what causes IQ differences between people. This relates to the nature/nurture debate in considering the strength of genes and environment and these interact to shape intelligence. Twin and adoption studies allow us … Read More
IQ Variation & Distribution
In this video I describe variation in IQ scores and the distribution of IQ scores in the general population. IQ scores follow a normal distribution with a mean of 100 and a standard deviation of about 15 points. Knowing IQ … Read More