In Wayne Dennis's study of infants in Iranian orphanages, only 15 percent of the orphans were walking alone by ?3 to 4 years of age because
A) they spent the first year of their lives being carried by caregivers.
B) they were malnourished and unable to acquire the strength to walk.
C) they spent their days lying on their backs in cribs.
D) rapid motor progress was actively discouraged by caregivers.

Question

Quizplus · Accepted Answer

The correct answer is C because Wayne Dennis's study found that the lack of opportunity for physical movement, as the infants spent their days lying on their backs in cribs, significantly delayed their motor development, including the ability to walk.

In Wayne Dennis's Study of Infants in Iranian Orphanages, Only