From a question to useful evidence

An introduction to observation, testable questions and careful measurement.

TANEVOR EXPLAINER · 2 MIN READ

Make the question specific

Define what you will observe. Ask what changes, what you will measure and what comparison would help answer the question.

Separate variables from assumptions

Changing several conditions at once can make results difficult to interpret. Keep relevant conditions consistent where possible, and record factors you cannot control.

Measure and document

Record the method, instruments and observations. Repeated measurements can reveal variation. An unexpected result can be useful when the procedure is clear enough to inspect.

Connect evidence to explanations

Evidence can support or weaken an explanation without settling every question. Consider alternatives and the limits of your measurements before drawing a conclusion.

Further reading: NASA Science: science-enabling technology. This is an original introductory overview; the linked resource offers wider context. Tanevor is independent of these organisations.