Theorizes that the effectiveness of personality tests can be influenced by many factors.
a. paul costa
b. hans eysenck
c. gordon allport
d. seymour epstein
select the best answer from the choices provided

The correct answer is C. Gordon Allport theorizes that the effectiveness of personality tests can be influenced by many factors.

Explanation:

Gordon Allport was an American psychologist.   He was a professor at Harvard University. During his studies in Europe he was strongly influenced by the ideas of Eduard Spranger and William Stern and by the German Gestalt psychology. In his psychology, Allport emphasized the uniqueness of each individual, the hunting functions and the complexity of the personality structure. He represented a humanistic and existential field of American psychology, and with the book The Individual and his Religion he renewed the psychology of religion. Allport sought to establish criteria for mature and immature religiosity and also discussed the psychological conditions and functioning of religious doubt.

a and b sometimes have a positive value