_____ is a particularly relevant design issue for developmental investigators conducting longitudinal research:
A) Attrition
B) Causal bias
C) Limited self-report
D) Social desirability

Question

Quizplus · Accepted Answer

Attrition, or the loss of participants over time, is a major concern for longitudinal research because it can threaten the validity of the findings. As participants drop out of the study, the sample may become less representative and the results may be biased. Therefore, it is important for researchers to identify and address factors that contribute to attrition, such as participant characteristics, study design features, and measurement issues.

_____ Is a Particularly Relevant Design Issue for Developmental Investigators