Standing in a campus courtyard with a clipboard to record your observations of students' usage of their cell phones is an example of ''Field research''.
Observing, interacting with, and understanding people when they are in a natural setting is the goal of field research, It is a qualitative approach of data collection. Natural resource conservationists, for instance, study animal behavior and response to various situations in their natural habitats.
Contrary to what is commonly referred to as experimental or lab research, field research methods include participant observation, data collection, and survey research. That's why Field research complements desk research, improves academic rigor, theories, and procedures, and offers a new perspective on conflict.
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I believe the answer is: B.the American Revolution
during the american revolution, The american colonists justify the action to revolve by stating that they felt that the british government treated them unfairly and they need to get out from their influence through the revolution. Jefferson Davis at that time argue that the southern states' action was the exact same thing.