A study in which results are measured without intervention from the researcher is called a(n) Observational study. The correct option is B.
<h3>What is an Observational study?</h3>
An observational study draws conclusions from a sample of a population in disciplines like epidemiology, social sciences, psychology, and statistics when the independent variable is not under the researcher's control due to ethical considerations or practical limitations.
An observational study is a statistical investigation in which the researchers make no adjustments or interventions.
Therefore, the study in which results are measured without intervention from the researcher is called a(n) Observational study. The correct option is B.
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