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.
A serving size suitable for kids between the ages of 2 and 3 is roughly equal to one-half of an adult serving. This generalisation is based on MyPlate serving sizes, not the portions offered at many eateries. The suggestions are meant as a rough guideline depending on age and amount of activity. So a half-slice of bread would constitute a serving for a child between the ages of two and three.
The majority of 2- to 3-year-old children require 1,000–1,400 calories per day.
In a balanced diet, distribute those calories as follows:
- Eat three to five ounces of grains every day, preferably half of which should be whole grains.
- 1 to 1 and half cups of cooked or raw veggies per day from the vegetable group. Young children, like adults, require diversity.
- Fruit Group: One to eleven and a half cups of fresh, frozen, canned, or dried fruits daily. 4 to 6 ounces of 100 per cent fruit juice maximum each day.
- Milk Group: 2 to 212 cups daily. For kids under two, whole milk is suggested.
- 2 to 4 ounces of the protein group overall each day. Lean meats, poultry, shellfish, eggs, soy products, cooked beans (black, pinto, kidney), unsalted nuts, and nut butter are all good sources of protein.
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