The way in which you quickly group the individual letters in this test item into separate words best illustrates the principle of _______.

The most general term for difficulties in understanding oral and written language is

A) agnosia. B) apraxia. C) alexia. D) agraphia. E) aphasia.

Selman's stages of friendship are based upon children's

a. physical abilities, such as gross and fine motor skills. b. popularity with peers. c. levels of independence. d. perspective-taking skills.