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)
Answer:
It is a research that shows that what influences the level of positive emotions in one country could be that which influences the negative expression in another country.
Explanation:
This research is premised on the factors responsible for individual expressions in different countries.
What defines ones happiness in one country could be that which brings about unhappiness. For instance, teachers in Finland are well paid and it gives them happiness and fulfillment. But the reverse is the case for teachers in most developing countries whose wages is not commensurate with the time spent work.
Answer:
Irish physicist John Tyndall
Explanation:
The greenhouse effect was discovered in 1896.
Specialization of labors leads towards productivity
