While Conducting Research on Intelligence, the Experimentes Were Very Careful

Multiple Choice

While conducting research on intelligence, the experimentes were very careful to control for unwanted variability in suchfactors as age, gender, ethnic background, socioeconomic status, and so on. They did this in order to avoid or minimizethe influence of:

A) extraneous or confounding variables.
B) dependent or outcome variables.
C) demand characteristics.
D) practice effects.