What is the major difference between primary circular reactions and secondary circular reactions in Piaget's sensorimotor stage?

a) an infant must first demonstrate the primary circular reactions before demonstrating the secondary circular reactions
b) primary circular reactions are based upon enjoyment activities, while secondary circular reactions are not
c) primary circular reactions bring about a desirable consequence, while secondary circular reactions do not
d) primary circular reactions involve activities where the infant is focused on its own body, while secondary circular reactions involve activities where the infant's actions relate to the outside world

d

Psychology

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Ryan's thinking is no longer restricted to personal experience as it was earlier in his life. Ryan is in the stage of

sensorimotor thought. preoperational thought. concrete operational thought. formal operational thought.

Psychology

Two of Dr. Brown's patients are in identical health, both having heart disease, diabetes, and limited physical abilities. However, one of these patients is 86 years old and the other is 56 years old. This example best points out what is meant by the term:

a. social age b. chronological age c. psychological age d. biological age

Psychology