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# : Levels of Measurement and Concepts of Validity. Quantitative in Public Health, - Research Paper Example

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LEVELS OF MEASUREMENT AND CONCEPTS OF VALIDITY Answer the following questions 1. Differences between the levels of measurement (type of measurement scale-nominal, ordinal, interval, or ratio- ). Providing an example of data that can be transformed from one level of measurement to another and another example of data that cannot be transformed…

## Extract of sample: Levels of Measurement and Concepts of Validity. Quantitative in Public Health,

Download file to see previous pages... In the nominal, numbers are used for the purpose of classifying data, words or letters would be congruently appropriate. For example, data or answers given to variables such as employment status (classified as 1); occupation (classified as 2) or place of residence (classified as 3). Usually, numbers are preferred since text takes up more space and longer to type out. In ordinal scales, values assigned to measurements can be ordered, (for example, the shoe size) and the numbers of an ordinal scale present an ordered relationship between the numbered items. Interval scale on the other hand, has measurements that are not only classified but also ordered, therefore, it consist properties of the two previous scales, but there are equal distances between each interval on the scale from the low end until the high end (example: Temperature scale of 96o and 98oC is the same as between 100o and 102 oC. ...Download file to see next pagesRead More
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