Questions
1. Models are analogies that allow us to clarify hypotheses-proposed explanations of relationships
between causes and effects. What roles do models play in testing hypotheses?
2. What did the humoral model of disease propose as the cause for cholera?
3. What did the miasma model of disease propose as the cause for cholera?
4. Unlike Snow's later work on cholera, his research on anesthesia was experimental in nature. What
general skills of experimental design were necessary to plan effective experiments to test dosage
measuring and delivery systems for anesthesia, or to investigate the properties and effects of different
drugs?
5. Why are experiments considered strong tests of hypotheses?