Classic Article 1
This article “On the Theory of Scales of Measurement” by S. S. Stevens classifies the measurement scales as Nominal, Ordinal, Interval and Ratio scales.
Appeared in Science, New Series, Vol. 103, No. 2684 (Jun. 7, 1946), pp. 677-680.
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1671815