the difference between an observational study and an experiment is that\nin an observational study, only one…

the difference between an observational study and an experiment is that\nin an observational study, only one group is studied, and in an experiment, two groups are studied.\nin an observational study, the researchers do not control treatment, and in an experiment, they do.\nin an experiment, cause - and - effect is analyzed, and in an observational study, it is not.\nin an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer period of time.

the difference between an observational study and an experiment is that\nin an observational study, only one group is studied, and in an experiment, two groups are studied.\nin an observational study, the researchers do not control treatment, and in an experiment, they do.\nin an experiment, cause - and - effect is analyzed, and in an observational study, it is not.\nin an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer period of time.

Answer

Brief Explanations:

In an observational study, researchers observe and record data without manipulating variables or controlling treatments. In an experiment, researchers deliberately manipulate one or more independent - variables (treatments) to observe the effect on a dependent variable.

Answer:

in an observational study, the researchers do not control treatment, and in an experiment, they do.