Anita is conducting a study on the work patterns and personal habits of her family members. She shadows them each day to record their daily interactions with each other and with the outside world—be it at school, work, or even the supermarket. In this scenario, such a study of the everyday interactions of people is most likely part of .

Microsociology

Explanation:

Based on the scenario being described within the question it can be said that this is most likely part of the field of Microsociology. This field studies the everyday human social interactions that exist within a society on a very small scale as opposed to the social aspects of a large population. In other words it deals with 1 on 1 interactions between humans. As in this scenario.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.        

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