Glen and Stacy are at a park with friends. Another couple begins taunting them and saying rude things. Based on research presented in this chapter regarding provocation, who is likely to behave aggressively?

An infant looks at her bottle and utters a sound with a rising pitch, or inflection. Her mother realizes she is asking if she can have the bottle because of the ________ in the infant's voice

a. relativity b. intonation c. babbling d. cooing

As one variable increases, the other variable decreases. This represents a __________ correlation

a) negative b) zero c) casual d) positive