Deon is 10 years old, but on intelligence tests, she scores at the level typical of 12-year-olds. Using the formula developed by Lewis Terman, Deon would have an IQ of:

Vygotsky's zone of proximal development was _____

a. the area in which children function best b. the space between where children function independently and where they need adult assistance c. the cognitive state they have achieved d. language

In the United States most variations in height and weight are the result of different people's

a. genes. c. diet. b. environment. d. lifestyles.