A disadvantage of using longitudinal methods of investigation is:

Question

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Using longitudinal methods of investigation is expensive as it requires researchers to collect data from the same group of subjects over an extended period. Additionally, subjects tend to drop out over the years, making the sample size smaller and less representative. Moreover, influential environmental changes may occur outside the time frame of the study, making it difficult to generalize conclusions. Therefore, all of these factors are considered as disadvantages of using longitudinal methods of investigation.

A Disadvantage of Using Longitudinal Methods of Investigation Is