Respuesta :
In psychology, concepts can be divided into two categories: Realizable and Unrealizable. Realizable concept may be or may be not realized, while unrealizable concepts cannot possible be realized.
In psychology, concepts can be divided into two categories namely natural and artificial. Natural concepts are produced in a natural way by means of experiences. They can be improved from either direct or indirect experiences in life. Whereas for artificial concept, it is defined by a particular set of traits. Different properties of geometric shapes are good examples of artificial concepts.