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The post industrial society is the stage of society's development when the service sector generates more wealth than the manufacturing sector of the economy.
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The blindfold represents impartiality, the ideal that justice should be applied without regard to wealth, power.
Before the war and where antibiotics and immunization were discovered, it was enforced to the public to practice cleanliness at home or public health methods. They made sure that the people will have clean water to drink, better living conditions, improve sanitation and nutrition.
Answer: External Validity
Explanation: After a scientific experiment or research must have been concluded and the necessary conclusion established. Applying the conclusion derived from that study to another setting which was not previously involved in the original study in other to test the correctness of the conclusion derived from the study is called EXTERNAL VALIDITY. External Validity increases the robustness and versatility of a research study. The third variable in the context above is gender which was not used previously in the initial study. It is aimed at accessing how well the conclusion or model can generalize in different scenarios.
Use of civil disobedience to gain political freedom.