What is the relationship between socioeconomic status, ethnicity, and IQ?

A) Within an ethnic group, there is still an effect of social class.
B) Within an ethnic group, there is no effect of social class.
C) SES, ethnicity, and IQ are unrelated variables.
D) IQ is related to ethnicity, but not to social class.

Socioeconomic Status

An individual's or family's economic and social position in relation to others, based on income, education, and occupation.

Ethnicity

A social category based on common culture, language, heritage, or nationality, distinguishing groups of people from one another.

IQ

Short for Intelligence Quotient, a measure of a person's cognitive abilities relative to their age group.