Answer:c.No, because although the two may be correlated, causation has not been established.
Explanation: Correlation only show us that there exist a relationship between two variable but it doesn't actual say that one is the cause of the other. It doesn't give us the cause of why this is happening or it doesn't say that these agreements are the cause of partners staying long with each other , it only tells us that there seems to be a relationship of some sort that exist. They may be may underlying causes that drives this which are not related to just argument so since correlation doesn't mean causation one can not make a conclusion from just correlation alone.
Answer:
The correct answer is The study has a problem with the External validity
Explanation:
External validity in research terms is the validity the research has in the outside world or in the applied social reality of the field of study, it is the extent in which the results and conclusions of the study can be applied and generalized to ohter external factors, therefore in this case, when the researchers did the experiment only with motivated volunteers did not take into account that people outside may not have the same motivation, therefore the results may not be the same in the external social reality and thus having problems with the external validity.
Tokyo, an example of an urban heat island. Normal temperatures<span> of Tokyo go up more than those of the surrounding area. An urban heat island (UHI) is a city or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities.</span>
