Dr Yin studies the onset and development of locomotion using parent diaries. In her data, she discovers a wide spread of ages for locomotion onset, ranging from 10 months to 18 months, with most children starting to walk at 14 months of age. What does this suggest about development of locomotion?

Question

Quizplus · Accepted Answer

The wide range of ages for locomotion onset suggests that individual differences exist in the development of locomotion. However, the fact that most children start to walk at 14 months of age suggests that the distribution is normal. Therefore, both options a and b are correct. There is no evidence to suggest that parents are poor sources of information about children's development, so option c is incorrect.

Dr Yin Studies the Onset and Development of Locomotion Using