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Scaling loudness with the Borg CR100 Scale®
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2014 (English)In: Fechner Day 2014: Proceedings of the 30th Annual Meeting of the International Society for Psychophysics / [ed] G.R. Patching, M. Johnson, E. Borg, & Å. Hellström, Lund: International Society for Psychophysics , 2014, 8-8 p.Conference paper, Poster (Refereed)
Abstract [en]

The Borg CR Scales® are general intensity scales suitable for most kinds of experiences and symptoms including loudness, but have predominantly been used for perceived exertion and pain assessment. Even if earlier versions have, the present Borg CR100 scale® has not, however, been tested on loudness. The scales are constructed to give ratio data and exponents that mimic what is obtained with magnitude estimation (ME). To also give level determinations and for interindividual comparisons, verbal labels are placed on the scale in congruence with the ratio scale from 0 (nothing at all) to 100 (”Maximal” and anchored in a previously experienced perception of, for example, perceived exertion), with, for example, ”Strong” at 50 and with the possibility to exceed 100 in extreme situations1. 36 university students (9 men and 27 women: mean age 22.4 years, s = 3.1 years) partook in a loudness experiment, scaling loudness with the Borg CR100 Scale®. All sounds, S ={40; 50; 60; 70; 80; 90; 100} dB(A), were presented four times in the same randomized order to all subjects. Sounds were generated by NMATLAB script, presented through earphones (Sennheiser HD 580 Precision) in a sound proof listening room using a stationary computer (Windows 7 Professional with RME Fireface 400 external sound card, sampling frequency 48 kHz, 24 bit depth). Geometric means of results obtained with the Borg CR100 scale® were R = {4.7; 7.3; 12.2; 19.2; 29.5; 51.0; 86.5} thus ranging from approx. “Very week” to just below “Extremely strong”. The power function, computed from individual geometric means, was R = 61.7 x S0.42 (r = 0.912) and thus similar to what has often been obtained with ME and also with previous versions of Borg CR scales. Coefficients of variation fell from 0.61 (40 dB) to 0.14 (100 dB), similar to what has been obtained for perceived exertion. The latest Borg CR100 scale® thus works fine for scaling loudness of pure tones.

Place, publisher, year, edition, pages
Lund: International Society for Psychophysics , 2014. 8-8 p.
Keyword [en]
Borg CR100 scale®, psychophysical scaling, loudness
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URN: urn:nbn:se:su:diva-110554OAI: diva2:772357
Fechner Day 2014
Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2015-02-24Bibliographically approved

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Borg, Elisabet
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