Fourteen-year-old Wesley’s self-esteem is likely to __________ from mid- to late adolescence

A psychologist has generated a hypothesis. Now,

a. it becomes a theory. b. researchers are bound to accept it as valid. c. research is needed to verify the if-then link. d. researchers are likely to move on to other hypotheses.

During which substage of Piaget's sensorimotor stage does the child "begin to act upon the outside world," in which infants seek to repeat enjoyable events in their environments if they happen to produce them through chance activities?

a) Substage 2: First habits and primary circular reactions b) Substage 1: Simple reflexes c) Substage 3: Secondary circular reactions d) Substage 4: Coordination of secondary circular reactions