Dr. smith is interested in the effects of aging on heart function. he recruits a group of ten 40-year-olds and gathers blood levels of cholesterol and other fats. he invites them back to the laboratory every 5 years, for the same measurements, until they are 60. dr. smith is conducting a(n) _____ study.
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.
