According to a national study of American families, about what percentage of children have used a computer by 3½ years of age?

____, individuals become more capable of focusing their attention on relevant information and disregarding what is irrelevant

a. In early childhood b. In middle childhood c. In early teenage years d. In late teenage years

________ models of psychopathology are also known as discontinuous models

Fill in the blank(s) with correct word