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KiRa [710]
2 years ago
12

In a clinical trial for a new headache medication, participants are randomly assigned to a treatment group or a placebo group. T

hey do not know whether they are receiving the medication or a placebo. The element of experiment design being used is _____.
blinding
randomization
replication
Mathematics
2 answers:
IRISSAK [1]2 years ago
8 0

Answer: blinding

Step-by-step explanation:

  • An experimental study in which the experimenter know the experimental procedure but not the participants are in the test groups during the the experiment is known as single blind.

Given: In a clinical trial for a new headache medication, participants are randomly assigned to a treatment group or a placebo group.

They do not know whether they are receiving the medication or a placebo.

⇒ The element of experiment design being used is single blind experiment or blinding.

RUDIKE [14]2 years ago
3 0
Single blind experiment
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Cost of cereals per box = $50 cents = 50/100 = $0.5
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If x is the number of cartons of milk bought, then
Number of loafs = x/2
Number pf boxes of cereals = x/2 +1
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Therefore,
0.7*x + 0.6*x/2 + 0.5 (x/2+1) + 1.5 (x/2+1) = 10
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Substituting;
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IgorC [24]

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The <u>correct answer</u> is:

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