What motor movement is an infant expected to be able to do around the same time the child develops a social smile?

According to the Denver Developmental Screening Test, a child should develop which of the following motor skills at approximately eight months old?

Reflexes occur after particular parts of the body are stimulated. Which of the following body parts and infant reflexes is correctly matched?

At 4-6 months of age, an infant is expected to be able to do/exhibit all of the following except:

An infant can show separation anxiety at the same time period they are expected to be able to:

At 1.5 years of age, a child is expected to be able to

A mother tickles her newborn baby's foot, causing the baby's big toe to extend upwards while the other toes fan out. This best describes which of the following reflexes?

What shape is a child expected to be able to copy at the age of 4 years?

A child is expected to have imaginary companions at the same age they are expected to be able to:

At what age is a child expected to be able to catch a ball with both hands?