this question is incomplete but I have added The Answer options to your question
a) He does not have a hypothesis.
b) He only has one group. He has not established a comparison
c) He has not measured an outcome.
d) The groups were not equal to begin with.
Answer:
b) He only has one group. He has not established a comparison
Explanation:
A randomized controlled experiment can be defined as an experiment that has two groups which it randomly assigns participants to.
These two groups are:
1.) the experimental group and
2.) The controlled group on whom the study is being performed.
Now Alberti does not have any of these groups we have listed. He performed the testing on the same people before they consumed alcohol and after they consumed alcohol. Therefore this study was not comparative in nature.
Because they feel like life doesn't matter anymore. maybe they have been through a lot amd can't deal with it anymore and they are to afraid to ask for help. a lot of people who get bullied feel as though they should give up.
Answer:
When your doctor takes your blood pressure, it's expressed as a measurement with two numbers, with one number on top "systolic" and one on the bottom "diastolic", like a fraction. For example, 120/80 mm Hg. The top number refers to the amount of pressure in your arteries during the contraction of your heart muscle.
Explanation:
I think the answer is "to manage stress improvement in appearance".
I say this because if you increase your self-esteem, there would be no reason to worry about appearance. Stronger bone mass increases the bone marrow mass - which produces more blood cells (good for the cardiovascular system). If you manage stress, your heart rate would not increase (good for the cardiovascular system)
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