Observational Dataset

See: Observational Study, Random Assignment, Epidemiology, Social Science, Psychology, Statistics, Sample (Statistics), Statistical Population, Dependent And Independent Variables, Scientific Control, Control Group, Experiment, Randomized Controlled Trial.

References

(Wikipedia, 2021) ⇒ https://en.wikipedia.org/wiki/observational_study Retrieved:2021-12-10.
- In fields such as epidemiology, social sciences, psychology and statistics, an observational study draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns or logistical constraints. One common observational study is about the possible effect of a treatment on subjects, where the assignment of subjects into a treated group versus a control group is outside the control of the investigator. This is in contrast with experiments, such as randomized controlled trials, where each subject is randomly assigned to a treated group or a control group. Observational studies, for lacking an assignment mechanism, naturally present difficulties for inferential analysis.