Which of the following studies is an example of a longitudinal design?
a. dr. stabler’s study in which he measured teenagers’ experiences with bullying in sixth grade and their aggressive tendencies in 12th grade.
b. dr. jonason’s study in which he measured job satisfaction in a group of chinese factory workers and in a group of american factory workers.
c. dr. tutola’s study in which he measured men’s ability to judge distances and compared those to women’s abilities in the same area.
d. dr. benson’s study in which she measured people’s spatial manipulation ability in august and measured their ability again in may after they had taken two semesters of art classes.

D. Dr. Benson’s study in which she measured people’s spatial manipulation ability in August and measured their ability again in May after they had taken two semesters of art classes.

Explanation:

Hello! Longitudinal studies are a research method that consists in measuring a phenomenon over a certain time interval. In this sense, they serve to analyze and observe in a sequential way the evolution of a phenomenon. The main objective is to obtain information about the process of change.

Thanks for your question!

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.

quote is the answer your looking for.