UNSPECIFIED. (2002) Subjective rating scales in ergonomics: a reply. ERGONOMICS, 45 (14). pp. 1042-1046. ISSN 0014-0139

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Abstract

Comments on the target paper are acknowledged. Whilst there is still some concern that subjective rating scales are scientifically suspect, the general view is that verbal reports, including ratings, constitute objective data, which can be of considerable value in ergonomics research and practice. The main anxiety attached to their use is to ensure acceptable levels of reliability and validity. Quantification in the strict sense can be achieved by some measures but is by no means essential for all scientific and practical purposes. The value of ordinal and qualitative data obtained by subjective judgements should not be underestimated, especially in predicting future performance. Many commonly used constructs such as fatigue, stress, mental workload, usability, etc. are complex and multidimensional, often combining both 'subjective' and 'objective' measures. The validity of individual dimensions and complex constructs lies principally in their relationships with other variables of interest in the context of the specific investigation. The question of design standards based partly or wholly on such scales should therefore be treated with some caution.

Item Type:	Journal Article
Subjects:	T Technology T Technology > TA Engineering (General). Civil engineering (General) B Philosophy. Psychology. Religion > BF Psychology
Journal or Publication Title:	ERGONOMICS
Publisher:	TAYLOR & FRANCIS LTD
ISSN:	0014-0139
Date:	15 November 2002
Volume:	45
Number:	14
Number of Pages:	5
Page Range:	pp. 1042-1046
Identification Number:	10.1080/00140130210166762
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/10205

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