A research study by Joseph Campos and colleagues (1970) found that infants did not show a fear response to the visual cliff until 9 months of age. Apparently, infants must in order to develop a fear of heights.
A) have some experience crawling and falling down
B) have observed others falling down
C) be encouraged by their parents to cross the cliff
D) have developed an advanced sense of vision

Question

Quizplus · Accepted Answer

The study suggests that infants develop a fear of heights after they have started crawling, which typically occurs around 9 months of age. This experience of mobility and the potential for falling seems to contribute to the development of caution or fear regarding heights.

A Research Study by Joseph Campos and Colleagues (1970) Found