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Related Experiment Videos

Measurement structures and psychological laws.

D H Krantz

    Science (New York, N.Y.)
    |March 31, 1972
    PubMed
    Summary
    This summary is machine-generated.

    Psychological research should prioritize discovering empirical laws over defining variables through physical measurements. Focusing on simple laws, whether quantitative or qualitative, is key to advancing psychological understanding.

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    Area of Science:

    • Psychological Measurement
    • Empirical Psychology
    • Philosophy of Science

    Background:

    • Empirical laws in psychology can be derived from physical measurements, counts, or classifications.
    • A common but flawed practice is defining psychological variables by their physical measures, obscuring the actual measurement performed.

    Purpose of the Study:

    • To critically evaluate the role of measurement in establishing empirical laws in psychology.
    • To emphasize the importance of discovering fundamental laws over the mere definition of psychological variables.

    Main Methods:

    • Analysis of the relationship between measurement structures and empirical laws in psychology.
    • Comparison of measurement in psychology with fundamental measurement in physics.
    • Conceptual exploration of the utility of abstract measurement structures in hypothesis generation.

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    Main Results:

    • The discovery of empirical laws, not the definition of variables, is the primary goal of psychological research.
    • Measurement structures can emerge from empirical relations and aid in formulating hypotheses, but are not always the most appropriate theoretical tool.
    • Focusing on simple, discoverable laws should guide research, irrespective of whether new measures are developed.

    Conclusions:

    • Prioritize the discovery of empirical laws in psychology over the potentially misleading practice of defining variables by physical measures.
    • While measurement structures can be useful, they should serve the discovery of laws, not replace it.
    • The ultimate aim of psychological research is the identification of fundamental, simple laws governing psychological phenomena.