Vygotsky believed that egocentric or private speech (talking aloud to one's self) played an important role in cognitive development by
a. enabling young children to express and understand their emotions.
b. helping organize young children's thinking, as a precursor to self-regulation.
c. scaffolding young children's zone of proximal development.
d. revealing children's idiosyncratic thinking.
Question 2
The general consensus is that disorders of the autism spectrum
a. are not related to any detectable brain growth abnormalities.
b. are directly caused by pediatric vaccines containing thimerosal.
c. are neurobiological in nature and have high family concordance rates.
d. cannot be reliably diagnosed because there is too much variation.