When young children are using speech that is spoken and directed to themselves, this is called

Cross-cultural studies of the rate of schizophrenia show

a. higher rates in Western cultures. b. higher rates in rural populations. c. higher rates in urban populations. d. higher rates in poor societies.

For a communication system to involve the use of true language, the following must be demonstrated:

a. semanticity, plurality and displacement. b. semanticity, infinite creativity and displacement. c. serendipity, infinite creativity and displacement. d. semanticity, infinite duplicity and displacement.