A Recent Study Found That Screening for Disease X Led

question 12

Multiple Choice

A recent study found that screening for disease X led to increased survival.In the study,those who were screened were generally younger,healthier,and more aware of their health than those who were not screened.This makes it hard to evaluate whether the improvement in survivorship was due to the screening program or due to the characteristics of those who are screened.What is the name of this issue when evaluating the effect of a screening program?

• A) Lead time bias
• B) Overdiagnosis bias
• C) Selection bias
• D) Misclassification bias
• E) Length-biased sampling

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Definitions:

Double-Blind Procedure

An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, used to prevent bias in research results.

Placebo

An inert or non-active treatment given to a participant in an experiment, used to measure the effect of the treatment being tested.

Barbiturates

A class of drugs that act as central nervous system depressants, often used for their sedative and hypnotic properties.

Deadly Effects

Refers to the harmful outcomes or mortal impacts that can result from certain actions, substances, or situations.