A disadvantage of longitudinal research is
A)it is expensive to conduct.
B)it is time-consuming to conduct.
C)participants who remain in the study may be dissimilar to those who dropped out.
D)All of these choices are correct.

Question

Quizplus · Accepted Answer

All three options are a disadvantage of longitudinal research. Longitudinal research requires a significant amount of time and money to conduct. Additionally, there is a risk of attrition or loss of participants over time, which may result in changes in the sample composition and limit the generalizability of findings to the original population.

A Disadvantage of Longitudinal Research Is