A(n) __________ is the mental image or typical example that exhibits all of the features associated with a concept

Which of the following represents the alternative or experimental hypothesis for a two group

experiment? A) M1 = M2 B) M1 - M2 = X1 - X2 C) M1 - M2 = 1 D) M1 ?M2

What is the correct order of the four stages of cognitive development, according to Piaget?

a. sensorimotor period, formal operational period, preoperational period, concrete operational period b. sensorimotor period, preoperational period, concrete operational period, formal operational period c. preoperational period, sensorimotor period, formal operational period, concrete operational period d. formal operational period, concrete operational period, preoperational period, sensorimotor period