You Are Performing a Study Which Examines the Change in Income

question 16

Multiple Choice

You are performing a study which examines the change in income over time. You plan to survey working adults with follow-up surveys from the same participants every five years. You find that over time you are losing many study participants as they retire. What type of threat to validity are you experiencing in this situation?

• A) mortality threat
• B) testing threat
• C) maturation threat
• D) history threat