Comparison in Scientific Research

Further Exploration

Fair tests in physics: Examining eclipses

A case study of research on general relativity that relies on comparison, from Understanding Science.

Fair tests in the fossil record: Avoiding extinction

A case study of research on extinction that relies on comparison, from Understanding Science.

Not a Cough in a Carload

Stanford University - An online exhibit of historical cigarette advertising.

Classics

The Anatomy of a Pygmie

BibliOdyssey - A collection of images from a first edition copy of Tyson's classic work.

Research

Smoking and Carcinoma of the Lung (pdf)

Richard Doll & A. Bradford Hill (1950) - Full text of the article published in the British Medical Journal.

Google Scholar

Google - Research database allows searching of the scholarly literature.

Next Generation Science Standards (NGSS)

Next Generation Science Standards: For States, By States

National Academies Press: A Framework for K-12 Science Education