Question

A researcher conducts a case-control study on cardiovascular disease and history of alcohol use. Participants are asked to report on the quantity of alcohol consumed in the decade prior to diagnosis (or in the decade prior to interview for those without cardiovascular disease). All of the following types of biases could occur in this study except:

recall bias

social desirability bias

lead time bias

exposure misclassification

selection bias

Answer 1

Recall bias is possible because not all people were able to recall the exact data

Social desirability bias is possible because at least few people will change their data in order to be seen as favorable by other people

Lead time bias is possible because detection of disease and its diagnosis has different time duration for different people

Exposure misclassification is possible because people included in the study are those who exposed and did not exposed to disease.

Selection bias is not possible becaue the selection is sample random selection

so, correct answer is SELECTION BIAS