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Related Experiment Videos

Measurement, value, and scale.

R Dybkaer1, K Jørgensen

  • 1Department of Clinical Chemistry, Frederiksberg Hospital, Denmark.

Scandinavian Journal of Clinical and Laboratory Investigation. Supplementum
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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This study clarifies measurement terminology, defining four scale types (nominal, ordinal, interval, ratio) based on international standards. This systematic approach resolves ambiguity in qualitative, semiquantitative, and quantitative descriptions for better scientific communication.

Area of Science:

  • Metrology
  • Measurement Science
  • Scientific Terminology

Background:

  • Ambiguous use of 'qualitative', 'semiquantitative', and 'quantitative' hinders clear scientific communication.
  • Lack of standardized terminology for measurement scales leads to inconsistencies in data interpretation.

Purpose of the Study:

  • To present a systematic terminology for measurement scales.
  • To clarify the definitions and distinctions between qualitative, semiquantitative, and quantitative measurements.
  • To provide a framework based on international recommendations and established scale theory.

Main Methods:

  • Review and synthesis of international recommendations (IEC, IFCC, ISO, IUPAC, OIML).
  • Application of Stevens' work on scales to categorize measurement types.

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  • Definition of measurement and scale properties.

    • Main Results:

    • Characterization of four hierarchical scale types: nominal, ordinal, interval, and ratio.
    • Explanation of scale properties, including independence from the number of values/classes or measurement uncertainty.
    • Introduction of terminology for the number of values (e.g., two-value, multivalue) and classes (e.g., two-class).

    Conclusions:

    • A standardized terminology for measurement scales enhances clarity and reduces ambiguity.
    • Understanding scale types (nominal, ordinal, interval, ratio) is crucial for appropriate statistical analysis.
    • The proposed systematic terminology aligns with international standards for precise scientific measurement.