In experimental research,which subjects do NOT receive some special treatment in regard to the independent variable

A)  those in the correlational group
B)  those in the observational group 
C)  those in the control group
D)  those in the experimental group

______ consist of attitudes,cognitions,and perceptions that may distort information exchange.

A) Interference mechanisms
B) Communication channels
C) Conceptual filters
D) Nonverbal behaviors

Marta is a rebellious teenager. Shane's mom does not want Shane to spend time with Marta because she is worried Marta will make Shane break the rules at home, just as Marta does at her home. Shane's mom is worried about the bad apple effect.