You arrange two rows of pennies so they are equal in length. A child views the rows and states that they have the same amount of
pennies. You spread out the pennies in the bottom row so it is longer than the top row. The child now states that the bottom row has more pennies. This child is in which of Piaget's stages? a. Formal operations
b. Preoperational
c. Concrete operations
d. Sensorimotor
The theory of Cognitive development was proposed by Jean Piaget that humans progress through four developmental stages which includes the sensorimotor, preoperational, concrete operational and formal operational period.
During the pre-operational stage of cognitive development, Piaget noted that children do not yet understand concrete logic and cannot mentally manipulate information. That's why the child stated that the bottom row have more pennies instead of observing it remained the same
Random assignment (also known as random allocation, or randomization), in psychology experiments, is randomly selecting participants or units by the use of chance procedures so that each participant or unit has the same chance (equal likelihood) of being assigned to any particular control or treatment group.
