Mai and Clifton Are Both Sitting Upright on an Experimenter's

question 8

Multiple Choice

Mai and Clifton are both sitting upright on an experimenter's lap and are presented with an interesting toy that is slightly beyond their reach. Although Clifton attempts to lean forward to grab the object, Mai does not, knowing it is too far away. Based on your knowledge of the development of reaching, you could conclude that

• A) Clifton is likely younger than Mai.
• B) Mai is likely younger than Clifton.
• C) both infants are younger than 4 months of age.
• D) both infants are older than 8 months old.
• E) their ages cannot be determined from the information provided.

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Definitions:

Macular Degeneration

A medical condition which may result in blurred or no vision in the center of the visual field due to damage to the macula.

Cataracts

A common eye condition where the lens of the eye becomes progressively opaque, leading to blurred vision.

Glaucoma

A group of eye conditions that damage the optic nerve, often due to abnormally high pressure in the eye, leading to vision loss.

Retinal Detachment

A serious condition where the retina pulls away from its normal position.