Why is Participant Burden Significant in Epidemiological Studies?
High participant burden can lead to low recruitment rates, high dropout rates, and potential bias in the study results. When participants find the study tasks too demanding, they may either refuse to participate or drop out before completion. This can result in a non-representative sample, which may affect the generalizability of the study findings. Additionally, excessive burden can lead to incomplete or inaccurate data, further compromising the study's validity.