Question

In a randomized controlled experiment, a- the environment is controlled by the researcher to be the...

In a randomized controlled experiment,

a- the environment is controlled by the researcher to be the same for all experimental subjects.

b-treatment assignment is controlled by the researcher rather than government or other administrators.

c-"control variables" are used to mitigate the effect of observed treatment not being randomized.

d-a random number determines whether the subject or the administrator (e.g., doctor) has control.

Math   Statistics-And-Probability   
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Answer #1

In a randomized controlled experiment,

Answer: a- the environment is controlled by the researcher to be the same for all experimental subjects.

b-treatment assignment is controlled by the researcher rather than government or other administrators.

c-"control variables" are used to mitigate the effect of observed treatment not being randomized.

d-a random number determines whether the subject or the administrator (e.g., doctor) has control.

Note:

In the randomized controlled experiment, subjects are allocated randomly to receive one of any number of treatments. We are using chance or random to divide subjects into groups means that the groups will be similar and that the effects of the treatments they receive can be compared more fairly.

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