the answer is: A cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors.
Here the requirement for research with human subjects according to the Fed :
"Obtains information or biospecimens through intervention or interaction with the individual, and uses, studies, or analyzes the information or biospecimens; or Obtains, uses, studies, analyzes, or generates identifiable private information or identifiable biospecimens."
The experiment on this ption fulfill the criteria because:
- The experiment should use studies or analytics to obtain some sort of private information from the subjects. (such as their mood)
- The experiment should make some sort of intervention that can be used to measure its hypothesis. (in the case above, the researchers could put the subject under a certain level of stress before telling them to solve a set of problems)
- The researchers need to interact with the subject in a certain way. (since the researchers meet the undergraduate directly, it's considered as an interraction)
According to the, Kinetic Molecular theory, temperature is directly proportional to average Kinetic energy of gas particle
Explanation:
At the level of molecule kinetic energy model helps to understand the gaseous physical properties. The kinetic energy model is based on several concepts.
In the constant random motion gases are made of molecules or atoms.
The particles of gases are are constantly colliding with each other.
The particles of gas are small and the complete volume taken by gaseous molecules are negligible in comparison to complete volume of container.
Between the gas particle their is no repulsion or attraction.
Gas particles average kinetic energy is proportional to the fixed temperature of the gas, and all gas at the equivalent temperature have the equivalent average kinetic energy.
Answer:
B. He granted freedom of religion in the Roman Empire is your best answer.
Explanation:
A is just one of the results occuring after he ended the persecution of Christians.
For C, he did not "introduce" Christianity, but he legalized it and made it the official religion of the Roman Empire.
For D, the Roman Empire was already a pagan empire, and Constantine made it a Christian Empire.
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