Questions and Answers
What type of scale is also known as the classification scale and consists of mutually exclusive and exhaustive categories?
What are some examples of nominal scale measurements in physical therapy?
Blood type, type of breath sound, type of arthritis.
What type of scale is also known as a ranking scale?
Provide examples of ordinal scale measurements in physical therapy.
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Which measurement scale has equal intervals but no true zero point?
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What are examples of interval scale measurements in physical therapy?
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What type of scale has equal intervals and a true zero point?
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List some examples of ratio scale measurements in physical therapy.
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Study Notes
Scales of Measurement
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Nominal Scale: Classification scale with mutually exclusive and exhaustive categories. Each object or person can belong to only one category. It is qualitative rather than quantitative.
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Nominal Scale Examples: Blood type, type of breath sounds, and type of arthritis are common examples used in physical therapy.
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Ordinal Scale: Known as a ranking scale where data is ordered based on a property of the variable. Intervals between ranks may not be equal or defined.
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Ordinal Scale Examples: Manual muscle test grades, levels of assistance, pain levels, and joint laxity grades serve as examples in physical therapy.
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Interval Scale: Features equal intervals between adjacent values, but lacks a true zero point, which distinguishes it from ratio scales.
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Interval Scale Examples: Commonly measured variables include temperature in Fahrenheit or Celsius, as well as some developmental and functional status tests in physical therapy.
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Ratio Scale: Contains equal intervals between values and has a true zero point, allowing for meaningful comparison of ratios.
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Ratio Scale Examples: Range of motion (in degrees), distance walked (in meters), time to complete an activity (in seconds), and nerve conduction velocity (in meters per second) are examples in physical therapy measurement.
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Description
This quiz provides flashcards on the scales of measurement, focusing specifically on the nominal scale. Learn the definitions and examples relevant to qualitative data collection, especially in fields like physical therapy. Perfect for students looking to reinforce their understanding of measurement concepts.
