In many cases a researcher conceals the purpose of the study, so that participants will not be heavily influenced by _________ characteristics

A person who takes turns in a conversation is using

a. Semantics b. Pragmatics c. Syntax d. Phonology

Marlena teases Jessica by calling her a "dodo head." This is an example of ________ aggression.

Fill in the blank(s) with the appropriate word(s).