Level of measurement or scale of measure is a classification that describes the nature of information within the values assigned to variables psychologist stanley smith stevens developed the best known classification with four levels or scales of measurement nominal ordinal interval and ratio. Ordinal methods more closely reflect the original data are simple to apply and can be used in samples of any size the books approach is in essence a return to simple empiricism in psychological measurement ordinal measurement in the behavioral sciences provides methods for analyzing test responses. It is based on the assumptions of ordinal statistics as explained in norman cliffs 1996 ordinal methods for behavioral data analysis it provides the necessary background on ordinal measurement to permit its use to assess psychological and psychophysical tests and scales and interpret the data obtained. I nominal ordinal interval and ratio measurement scales in the social and behavioral sciences as in many other areas of science we typically assign numbers to various attributes of people objects or concepts this process is known as measurement. Entdecken sie ordinal measurement in the behavioral sciences von norman cliff und finden sie ihren buchhandler this book provides an alternative method for measuring individual differences in psychological educational and other behavioral sciences studies it is based on the assumptions of ordinal statistics as e
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