Experiments can determine cause-and-effect relationships with the effects being measured by the __________variable

You just found our that your friend Willard is using crystal meth. What is your number one concern?

A) He will experience withdrawal. B) He will become depressed. C) He will overdose. D) He will become paranoid.

Although those with high IQs are found across professional fields, which professional group tends to obtain the highest average IQs?

A) Social workers B) Law enforcement officers C) College professors D) Plumbers