Looks at research methods used to study diseases in society. The first short program interviews Dr. Robert MacInnis, Epidemiologist and uses lung cancer as an example, to explore the critical role epidemiology plays in establishing the cause of a disease. Two bonus short programs are included which look at the difference between correlation and causation, reliability and validity. These activity-based programs show teacher Deb Gajic taking her students through some simple experiments to make these key concepts more accessible. *Sub-Titled