Cultural differences in the timing and extent of infant crawling have been linked to:
A) Parents' expectations and differences in everyday childrearing routines
B) Genetic differences in muscle development
C) Living among large numbers of siblings and extended family
D) The degree to which parents carry their infants

Question

Quizplus · Accepted Answer

Cultural differences in childrearing practices, such as the frequency and type of carrying, as well as expectations for motor development, can affect the timing and extent of infant crawling. Genetic differences may also play a role, but cultural factors have been shown to have a stronger influence. Living among large numbers of siblings and extended family may provide opportunities for social interaction and play, but it is not directly linked to crawling development.

Cultural Differences in the Timing and Extent of Infant Crawling