As you may have guessed, there are no right or wrong answers to the essay questions in this practice test. That does not mean, however, that all essays are equally good. To get maximum learning benefit from the essay questions, do the following:

• Review each essay a day or two after you wrote it, noting any necessary corrections and any additional support for your points that you can think of.
• Review the section in your textbook that pertains to the topic of each essay. Annotate your essay with any corrections or additional support for your points that you find in the text.
• Spend a few minutes researching the topic of each essay on the Internet. Annotate your essay further with any additional (reliable) information you find.
• Finally, reread each essay with the annotations you have added.

1		Do you have a sensory deficit such as myopia or hyperopia, color blindness, or impaired hearing? If you do not, surely you know someone who does. How does this condition affect the person's life? If (as in the case of mild to moderate visual impairment) the condition is easily corrected with a device such as prescription lenses, how would it affect the person's life if such a device did not exist?
2		Think of a time when you and someone else both experienced a sensory stimulus (i.e., a sight, sound, taste, odor, or haptic sensation), but the other person perceived it quite differently from the way you did. Describe the situation and recount what happened as a result of your differing perceptions. Was the outcome humorous, disastrous, or inconsequential?
3		Considering what you have learned in this chapter about critical periods, explain why it is important for infants and toddlers to receive frequent medical check-ups that include evaluation of their sensory and perceptual development.