Simone is doing research with head injury victims who are in physical therapy. she believes that the addition of music to their physical therapy routine will enable them to better coordinate their motor skills. she randomizes the patients into two groups. group a will get the regular physical therapy sessions. group b will get the identical physical therapy sessions while listening to music. what is the independent variable?

Which of the following answer best explains the ideals or principles led to the concept of manifest destiny? a americans wanted the european countries to stay out of the north american continent. b americans felt they had a god-given duty to protect the land of the native americans. c americans thought they had a god-given duty to spread their culture and government. d americans learned about this concept from the native americans tribes had encountered.