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

question 4

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

---

Definitions:

Stock Options

Financial instruments that give employees the right to buy a company's shares at a predetermined price, often used as a form of employee incentive.

Long-Term Capital Gains

Profits from the sale of an asset held for more than a year, typically taxed at a lower rate than regular income.

Poor Performers

Employees or members of an organization who consistently fail to meet the established performance standards.

Good Performers

Employees who consistently achieve or exceed their work objectives and contribute positively to the organizational goals.