This is important because the answers they give can help the experimenter to assess the child's developmental age.

The level of development of fine motor control in children is used to determine the developmental age of the child.

At 7, he has the developmental age of a 3- or 4-year-old.

Often occurring when children are learning to speak, these errors are considered a disorder if they persist after a certain developmental age.

A developmental age at which a child should be able to correctly produce a certain sound is different depending on the difficulty of the sound.

When he was 13 years old, experts determined that he had a developmental age of 7.

In Preparatory year, the academic program is designed to ensure students achieve age appropriate developmental and learning goals.

The child's developmental age is another key consideration.

Each group was further divided into two subgroups based on developmental age (24 or 36 months).

All four groups then received different tasks corresponding to their developmental age.