Answer to Question 1
Ans: A
For infants younger than 6 months of age, objects such as a black-and-white checkerboard or concentric circles are best because an infant's vision is more attuned to these high-contrast patterns than to colors. High-contrast animal figures such as pandas or Dalmatians also work well.
Answer to Question 2
Ans: A
Any child who loses a developmental milestonefor example, the child able to sit without support who now cannotneeds an immediate full evaluation, since this indicates a significant neurologic problem.