Fill in the blank: when evaluating an observational study, the four factors that should be reviewed are introduction, methodology, results, and

The correct term to fill in the blank would be   discussion. When evaluating an observational study, the four factors that should be reviewed are Introduction, Methodology, Results, and Discussion. In an observational study, the researcher cannot control the variables. The researcher wold draw some inferences from a set of sample without controlling anything.

Many things that seem threatening in the dark become welcoming when we shine light on them