hypothesis-observation is like chicken-egg

Categories: Comparisons

An example of a hypothesis used to explain a scientific idea:

"The problem 'Which comes first, the hypothesis (H) or the observation (O)?' is soluble; as is the problem, 'Which comes first, the hen (H) or the egg (O)?'. The reply to the latter is , 'An earlier kind of egg'; to the former, 'An earlier kind of hypothesis'."

Sir Karl Popper

Popper, K. R. (1989). Conjectures and Refutations. The Growth of Scientific Knowledge (5th ed.). Routledge. (First edition, 1963)


Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.