Assignment task:
When screening apparently healthy individuals for disease detection - a positive test result in a clinically healthy individual indicates that the disease is at which point on the disease time line? Before exposure Between exposure and onset of pathological changes Correct! Between onset of pathological changes and onset of clinical disease After onset of clinical disease After recovery. What is the 'ecological fallacy'? Group of answer choices When one makes conclusions at the individual level based on aggregate, population data When one makes inferences about prevalence from incidence data When one makes conclusions about a population by aggregating randomly selected individual data When one makes a confounding error