Difference Between Observational Study and Experiments

The collection of data varies in different types and kinds of studies. In some studies, it is done spatially, whereas, in other studies, it is done statically. In some studies, the researcher needs to do some experiments to derive a conclusion.

Observational Study vs Experiments

The main difference between Observational study and experiments is that observations are counted in the case of observational study. Whereas in the case of experimental study or also called experiments, more importance is given to the conduction of experiments.

Observational Study vs

The study in which observations are counted is called an observational study. It is the way the observations are noted makes it different from another kind of study called an experimental study.

The study in which more importance is given to the conduction of experiments is called an experimental study. As the name suggests, the conclusion solely depends upon the data collected primarily after the experiments are conducted.

Comparison Table Between Observational Study and Experiments

Parameters of ComparisonObservational StudyExperiments
EmphasisObservations are counted.Emphasis is given on experiments.

Drawing the conclusion
Emphasis is put on making an observation, and the conclusion is drawn from it.More emphasis is put on experiments and not just observations, and then the conclusion is drawn.
Rely onThe researcher is expected to rely on the collected data.The researcher is expected to observe various things through different studies or websites.
Human interventionDoes not Include Human intervention.Includes Human intervention.
ExampleRelationship between lung cancer and smoking.Hawthorne studies

What is Observational Study?

In the case of an observational study, it is not at all mandatory for the researcher to do any experiments, but he or she just needs to make a list of observations and then can arrive at a conclusion. Observational study abstains itself from conduction of any kind of experiments.

Although there are many examples of observational study is there, but we will determine a relationship between the happening of lung cancer in humans and smoking. Thus, data were collected from both those who smoke regularly and those who do not smoke at all.

What are Experiments?

In the case of experiments, the researcher must conduct experiments and then draw observations from them. In this type of study, manipulation can be done by the researcher in almost every aspect to conclude.

Hawthorne studies best sets an example for an experimental study. This particular study was conducted in the Western Electric Company and on the Hawthorne plant.

Main Differences Between Observational Study and Experiments

  1. In Observational Studies, observations are counted. On the other hand, in experiments or experimental studies, more emphasis is given to experiments.
  2. The observational study differs from experiment or experimental study in the way the observations are taken or noted.
  3. In an observational study, the person undergoing the study emphasizes making an observation, and the conclusion is drawn from it. On the contrary, in experiments or experimental studies, more emphasis is on experiments and not just observations.
  4. In an Observational study, experiments are not done, and the researcher has to rely on the collected data. On the other hand, in the case of experiments or experimental study the researcher has to observe various things through different websites or studies.
  5. The observational study does not include human intervention. On the other hand, in the case of experiments, human intervention is quite common.
  6. An example of an observational study includes the relationship between lung cancer and smoking. On the other hand, an example of experiments includes Hawthorne studies.
Difference Between Observational Study and

Conclusion

In research, two important and major types of study are involved. Two of them are observational studies and experiments or experimental studies. They differ from each other solely in the way the observations are drawn.

However, in the case of experiments or also known as experimental study, with the noting down of observations, experiments are also done to conclude. As Observational study does not include the conduction of experiments, thus it does not include human force.

References

  1. https://onlinelibrary.wiley.com/doi/abs/10.1002/0470013192.bsa454
  2. https://www.metheval.uni-jena.de/projekte/symposium2006/material/cook_shadish_and_wong.pdf

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