What is the primary difference between an experiment and an observational study?
a. ex...
Physics, 27.12.2019 13:31 stefkellum58
What is the primary difference between an experiment and an observational study?
a. experiments are always done in a lab.
b. in an experiment, the researcher manipulates a variable.
c. an observational study involves many more people.
d. observational studies always make correlations.
Answers: 1
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