observational studies?
Mathematics, 14.04.2020 05:15, ayaanwaseem
Which of the following is not a characteristic of both surveys and
observational studies?
O
A. The researcher does not control or change the population.
O
B. Results are not used to prove cause and effect.
O
C. Data are collected about a population.
O
D. The researcher exercises direct control over at least one variable.
Answers: 1
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Do you know the correct answer?
Which of the following is not a characteristic of both surveys and
observational studies?
observational studies?
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