Longitudinal Study or research is a type of observational research (study) in which specific subjects (variables) are observed and data is gathered on them over a period of time. In this case, the subjects being observed are the premature children, the data collected on them are their intellectual growth and this research was carried out over the period of Eighteen (18) years.
true but not always the conflict resolution works every time sometimes the conflict resolution will not solve the problem other methods can solve the problem so it's a maybe
