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Flashcards in Scientific Terminology Deck (6)
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1

Accuracy

A result is considered accurate if it is close to the true value

2

Repeatable

A measurement is repeatable if the person, who is doing the experiment, gains the same results from the same method.

3

Reproducible

A measurement is reproducible if a different method is used but the same results are produced.

4

Validity

Suitability of the investigative procedure to answer the question being asked. For example, an
investigation to find out if the rate of a chemical reaction depended upon the concentration of
one of the reactants would not be a valid procedure if the temperature of the reactants was
not controlled.

5

Uncertainty

The interval within which the true value can be expected to lie, with a given level of
confidence or probability, eg 'the temperature is 20 °C ± 2 °C, at a level of confidence of 95%'.

6

Resolution

This is the smallest change in the quantity being measured (input) of a measuring instrument that gives a perceptible change in the reading.