Answer: Reactive Genotype-Environment Correlation
Explanation: These differences are related to some facts: different number of temperament dimensions; different emphases given to the biological factor; function of motivation in temperament; definitions of temperament, which in some cases concern the behavioral aspect but in others refer to the psycho physiological aspect; some theorists emphasize the regulation and control of behavioral components as an aspect of temperament, while others refer to behavioral styles; different conceptions related to the influences of context and interpersonal relationships on temperament; and different boundaries between personality and temperament.