Which skill, if it cannot be performed by a 3-year-old child, should alert the nurse that the child may be developmentally delayed?

3-year old child should effectively do motor movements such as:

•Using a spoon,

•Walk up and down stairs,

•Walk forward and backward,

•Climb,

•Throw and catch a ball,

•Run and ride a tricycle.

Also, at this age, child will develop rapidly, improve its language skills, build relationships and develop imagination.

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.