Siblings of schizophrenics are about ______ times more likely to be schizophrenic than other children

How would B. F. Skinner account for the acquisition of language?

a) classical conditioning b) imitation and reinforcement c) linguistic acquisition device d) cultural expectations and family care

The idea that delinquency is a result of adolescents' low self-esteem is termed:

A) the narcissism theory. B) the identity diffusion theory. C) the possible selves hypothesis. D) the self-enhancement thesis.