The <em>name </em>which is given to the study which <em>Dr Smith</em> is doing about finding out whether aggressive preschoolers are<em> likely to become</em> aggressive adolescents is called:
According to the given question, we are asked to state the <em>name </em>which is given to the study which <em>Dr Smith</em> is doing about finding out whether aggressive preschoolers are<em> likely to become</em> aggressive adolescents.
As a result of this, we can see that when a study is being made about whether people are likely to maintain his behavior and aggressiveness into a later stage, then it is a longitudinal design because it has to do with observational study
Therefore, the correct answer is option D
Read more about longitudinal design here:
brainly.com/question/25681723
