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Measurement in psychology
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2011 (English)In: Measurement with persons: Theory, methods and implementation areas / [ed] B. Berglund, G.B. Rossi, J.T. Townsend & L.R. Pendrill, New York and London: Psychology Press/Taylor & Francis Group , 2011, 27-50 p.Chapter in book (Other academic)
Abstract [en]

In psychology, there are two main schools of metrology: psychophysics and psychometrics, which are grounded in physics and statistics, respectively. In both schools, reliable and valid measurement would require well-designed studies involving persons, that is, persons as measuring instruments or as objects for measuring their own characteristics e.g., personality or emotions. Originally, psychophysical experiments were set up to measure sensory perception and performance particularly malfunctions such as specific color blindness or hearing deficits. This would involve identification/recognition, discrimination and perceived intensity measured in physical quantities. At least three psychophysical ‘laws’ were established: that of Weber, Fechner and Stevens. Mathematics and statistics relevant to theory in decision-making were soon applied e.g., signal detection theory and choice theory. For intensive continua, the methods of quantification were divided into the direct and indirect scaling methods; the direct ones strived towards fundamental measurement, whereas the indirect ones were grounded in statistical theory. Because of cumbersome data collection, the indirect scaling methods are seldom applied outside the research laboratory. Direct scaling methods do fulfill requirements from comparability to calibration: absolute magnitude estimation, magnitude matching, constrained scaling, Borg’s category-ratio estimation, and Berglund’s master scaling. Several statistically base methods are applied in measuring complex psychological phenomena, such as descriptor profiling, cluster analysis, multidimensional scaling, individual differences scaling, and correspondence analysis.

Place, publisher, year, edition, pages
New York and London: Psychology Press/Taylor & Francis Group , 2011. 27-50 p.
, Scientific Psychology Series
Keyword [en]
measurement, metrology, psychology. psychophysics
National Category
Psychology (excluding Applied Psychology)
Research subject
URN: urn:nbn:se:su:diva-69196ISBN: 978-1-84872-939-1OAI: diva2:475403
Available from: 2012-01-10 Created: 2012-01-10 Last updated: 2012-02-24Bibliographically approved

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Berglund, Birgitta
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