Dr. Smith is conducting a longitudinal case where it is a case being done in a same manner over a long period of time. It could be seen above as Dr. Smith has instructed his representatives to go back every five years to conduct the same measurement in a course of a long period which is until they are sixty years old which could be classified as the longitudinal case.
Answer:
random assignment
Explanation:
Random assignment is an experimental technique that seeks to form random and fully randomized experimental groups in relation to the treatments presented in the research. This type of technique prevents the formation of "combined groups" that show the differences to each other and can generate a comprehensive result on the research, thus the random formation of diverse groups that can represent a much larger and different population.
An example of this can be seen in the question above, where the researcher decides the formation of the group that will receive the medicine and the group that will receive the placebo, completely randomly.
<span>“Pride and Prejudice” By Jane Austen might be seen as a comic novel, in fact is it a comedy of manners because it portrays the life of a family in the 18th century and the complexity of event among them. </span>
<span>Process. Both major political parties of the U.S.—the Democratic Party and the Republican Party—officially nominate their candidate for President
at their respective national conventions. Each of these conventions is
attended by a number of delegates selected in accordance with the given
party's bylaws.</span>
