For Decades,researchers Have Found a Correlation Between Socioeconomic Level and IQ,in

Multiple Choice

For decades,researchers have found a correlation between socioeconomic level and IQ,in part because standardized intelligence tests

A) are biased in favour of students from upper-income families.
B) are usually taken by students from lower-income families.
C) discriminate against students from middle-income families.
D) are rarely taken by students from lower-income families.