In a Case‐control Study of the Association Between Residence near a Hazardous

Multiple Choice

In a case‐control study of the association between residence near a hazardous waste site and leukaemia, selection bias is likely to be a problem because:

A) People with leukaemia may be more likely to participate than controls recruited from the general population
B) People with leukaemia living near a hazardous waste site may be more likely to participate than people living further away.
C) People without leukaemia living near a hazardous waste site may be more likely to participate than people living further away
D) All of the above