I believe the answer is: Temperament
Temperament would very much determine how an individual react under certain circumstances.
For example, someone with high temper could easily display aggressive behavior with very little provocation, while the others could maintain calm and collected attitude in the middle of a chaos.<span />
Bankruptcy I think and I’m pretty sure it’s not cancellation
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.
