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.
Answer:
The last option, Hit the ball after it bounces first
Explanation:
Hope this Helps! :)
Answer:
Opinion 1
Explanation:
I agree more with opinion 1 because video games make people extremely lazy. Instead of going outside and playing sports/ exercising kids sit at home and play online sports. You get no exercise at all which is really bad for your health.
Answer:
I believe that the Baby needs to be burped. If a baby isnt burped it builds up air and gas in the stomach making it uncomfortable for babies. They tend to hold their legs up in the air to pass gas.
Hoped this helped
Answer:
no...... not at all..................
