Data on attrition in a sample of a longitudinal study indicated that adolescent participants differed significantly from dropouts on a number of important variables. Suggestions were made for dealing with the impact of attrition in longitudinal research.
No takes yet. Share an insight, caveat, or question.
Brook et al. (1983) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: