We research theories of personality to: establish one of them as superior among all. describe their use for real-world problems. show how personality theories are superior to any other theories. generalization that all people are the same across cultures.

Second option is the correct

Explanation:

Among the four options given the research theories on personality are done to describe their usage or application in real world problems.

Personality

Personality is defined as a mixture of human traits or characters which make him different than others and it is one's identity also

Now studies are done on personality in order to see the variance of human reactions and compare each with real world scenarios and then see what is the best response under certain situation

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.

answer; /// i believe the correct answer is (when one group has an extremely high score at pretest;