Question

Researchers collect data without intervening or introducing treatments. What is this type of study called in medical research?

1) Observational studies
2) Experimental studies
3) Cohort studies
4) Case-control studies

Answer 1

An observational study is where data is collected without intervention, and it's used when experimental studies are not ethical or feasible. Types include cohort and case-control studies. Option 1) is correct.

Step-by-step explanation:

The type of study in medical research where researchers collect data without intervening or introducing treatments is known as observational studies. These studies are crucial when it is not feasible or ethical to conduct experimental studies. In observational studies, the researcher observes and records data, but does not manipulate the independent variable.

There are different types of observational studies, each with a particular focus and methodology, such as cross-sectional, cohort, and case-control studies. Cohort studies involve following a group of similar individuals over time to see how their exposures affect their outcomes. In contrast, case-control studies are retrospective and compare past exposures between individuals with a certain outcome (cases) and those without (controls).