Up to ____________ of children with ADHD also have depression or some other type of anxiety, mood, or behavioral disorder

Henry is 6 . He is shown a box of cheerios. The researcher opens the box and shows him that the box is filled with bouncing balls. Henry is then asked what he thinks his brother will think is in the box. Given his age, what would he say?

a. the box is filled with cheerios b. the box is filled with rubber balls c. the box is filled with toys d. the box is empty

Suppose you want to find out if using cell phones while driving a car affects the likelihood of having an accident. Driving ability as defined by the scores achieved on a test of driving ability would be the variable

a. independent b. control c. extraneous d. dependent