Infants can imitate actions one day after seeing them as early as age

Play therapy, a standard technique of contemporary psychotherapy with children, was introduced by ____

a. ?Melanie Klein b. ?Anna Freud c. ?Karen Horney d. ?Helene Deutsch e. ?Erik Erikson

When a person speaks using several critical content words but does not actually use full sentences, he or she is said to be engaging in

a. underextension. b. telegraphic speech. c. babbling. d. joint attention.