External validity
Sigmund freud's psychoanalytic theory was based primarily on descriptive data from a few case studies. Critics question how well the experiences of these unusual individuals represent others. The concern referred to is that this type of research may lack external validity.
External validity is the extent to which the information and theories of a study can be generalized to other conditions or to other people. People, places and times are the three major threats ( factors that could be wrong) to external validity
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Explanation: Thoreau was a philosopher, writer and devotee of nature. His philosophy was based on independence, freedom of mind. He felt that the government was restricting people from taking care of themselves, their needs. He was not an anarchist but believed in minimal, almost no governmental restrictions.
He considered the rule of the majority is not good, because it implied the compulsion of having to go with the group and follow the rules of the group, which was restrictive for him. The only obligation, according to Thoreau, was to follow his conscience. That way, he would only do what he thought was right, and he would be obliged to do only what was right.
B. air pollution from trucks and C. unclean water from fertilizers.
Answer:
1/8
Explanation:
The chance of having a boy every the previous time are 1/2 each, and since there were three boys, you need to solve for 1/2*3, which gives you 1.8. I hope this helps.
It means the practice of achieving goals such as social change through symbolic protests<span>, civil disobedience, economic or political noncooperation, satyagraha, or other methods, while being </span>nonviolent<span>.</span>
