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Data from QRS instruments are represented in the Functional Tests (FT), Questionnaires (QS), and the Disease Response and Clin Classification (RS) domains. Refer to Examples for 

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Section x.x, Guidance for Questionnaires, Ratings, and Scales

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See the examples in the QRS supplements posted on the QRS web page (https://www.cdisc.org/standards/foundational/qrs). for examples. 

There are no published CDISC QRS Supplements for the evaluation of sponsor-defined general single-item assessments as they are not considered standard QRS instruments, but assess symptoms or other disease related items like overall quality of life, etc. These assessments may be evaluated using sponsor-defined general codelist scales, visual analog scales (VAS) or numeric rating scales (NRS). VAS and NRS Scales use various methods for describing the anchor points and may have descriptor anchors (e.g., beginning, middle and end) for various gradations or numbers). There may be examples of these assessments in the literature, but they are not considered CDISC QRS standard instruments, due to the extreme variability in the methods of capturing these types of assessments. These assessments may be in the public domain or may be copyrighted. Sponsors are responsible for the appropriate usage of any copyrighted assessments. These general single-item assessments are represented in the FA-- domain. 

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