Social epidemiology is a branch of epidemiology that focuses particularly on the effects of social-structural factors on states of health. Social epidemiology assumes that the distribution of advantages and disadvantages in a society reflects the distribution of health and disease.
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Answer: Experimenter bias.
Explanation: Experimenter bias is the condition which describes a person as a part of experiment who is influencing the outcome of the experiment so that the desired or preferred results can be obtained.Experimenter bias is also known as research biasing.
The example mentioned in the question where Brian is conducting the study with sharing his views with the participants that he expects girls should perform better than boys in the experiment is example of experimenter bias.
The actual experiment should have been conducted without any thought sharing or acknowledgement which would have produced unbiased outcomes.But according to Brain's study, the expectations are conveyed ,therefore it will influence the result of the experiment as it becomes biased.
Answer:
b. I think??
Explanation:
not really sure so don't depend on me
B. population of the region
