Which type of bias occurs only in observational studies of screening efficacy and means that the decision to be screening is influenced by a person's health awareness, which in turn may be related to his or her subsequent morbidity and mortality?
A) Volunteer bias
B) Lead-time bias
C) Information bias
D) Length-bias sampling

Question

Quizplus · Accepted Answer

The Answer of Which type of bias occurs only in observational studies of screening efficacy and means that the decision to be screening is influenced by a person's health awareness, which in turn may be related to his or her subsequent morbidity and mortality?
A) Volunteer bias
B) Lead-time bias
C) Information bias
D) Length-bias sampling

Which Type of Bias Occurs Only in Observational Studies of Screening