Why servicemen felt bitter when they returned from WWI?

The code of ethics of the sets forth certain basic standards that sociologists must follow in conducting research. question 14 options:

Kate is 14 years old and just started taking dance classes with her friends at a local dance studio. this is her first time in a dance program, so everything is new to her. her friends convinced her to join the class since they have been enjoying it for a few months. how could the following terms her succeed in the dance class? ● secondary reinforcement ● identity vs. role confusion ● observational learning how could the following terms hinder her success in the class? ● circadian rhythm ● basal ganglia ● vestibular sense

What is the role of communication within groups of people with different backgrounds?