Lily is attempting to compare the impact on new drug laws on crime rates in Colorado by comparing it to states that have not adapted similar laws. However, she is finding it hard to find a comparison state. Which internal validity concern is likely the cause?
A) compensatory equalization
B) compensatory rivalry
C) resentful demoralization
D) diffusion of treatment

Question

Quizplus · Accepted Answer

Diffusion of treatment occurs when the intervention or its effects spread to the control group, making it difficult to find a comparable state that has not been influenced by the new drug laws in Colorado.

Lily Is Attempting to Compare the Impact on New Drug