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Levels of measurement in quantitative studies

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I don't understand this research and statistics stuff at all. Hope you can help me through.

Differentiate among data collection techniques (nominal, ordinal, interval, and ratio data). Describe the advantages and disadvantages of each.

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Solution Summary

Short discussion on the levels of measurements and their uses in quantitative studies.

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Nominal data is the most basic. As I tell my students, the variables just are: male,female, Black, Caucasian, Egyptian, Hawaiian, tall, short. They cannot be tested in terms of order. Ordinals are those data that can be placed in order. Amount of pay, level of education, winners of a race, military personnel. Anything that can be ranked is ordinal.

Ratio and interval are tricky but ...

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