Which type of motivation tends to be undermined by strong external rewards?

Ricky and Kyle are building a castle of blocks together in their kindergarten class. Ricky is building the turrets and Kyle is building the moat. This interaction illustrates

a. imitation. c. pretend play. b. parallel play. d. cooperative play.

Of the following, who has a speech pattern comparable to that of a person with Wernicke’s aphasia?

a. ?Ashley, who has a moderate level of intellectual disability, but has fluent speech and a large vocabulary for her age b. ?Diego, who speaks very slowly and with much effort, but generally makes sense c. ?Dan, who speaks rapidly, fluently, and with good grammar, but rarely makes sense d. ?Erica, who has severe difficulties with the production of language though she is otherwise healthy