Is defined as a special kind of systematic observation, used by correlational researchers, that involves obtaining measures of the variables of interest in multiple waves over time.

Longitudnal design          

Explanation:

Longitudinal design or study is categorized as an observational research in which the same subject or person is being observed for a long period. In this study, the data is being collected from the same person over a period of time. there are three types of longitudinal design that is; cohort study, panel study and retrospective study. This is a type of co-relational research.

another answer from our community: let us first explain the meaning of "eternal truth" which is tomean, continuing forever or indefinitely. this being the case itcannot be changed, for truth is truth no matter what changes aremade to the structure of its explanation. however, as for religeons changin… (more)

whitch constitution would be inadequate as a basis for government today?

the answer would be a) it only allowed catholics to be in government.