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The VAS can be compared to other linear scales such as the Likert scale or Borg scale. The sensitivity and reproducibility of the results are broadly very similar, although the VAS may outperform the other scales in some cases. [1] [2] These advantages extend to measurement instruments made up from combinations of visual analogue scales, such ...
The EQ-5D essentially consists of two pages: the EQ-5D descriptive system (page 2 of the questionnaire) and the EQ-5D visual analogue scale (EQ VAS) (page 3 of the questionnaire) (Video: Explaining the EQ-5D in about Two and Half Minutes). As noted above, ‘EQ-5D’ is not an abbreviation and is the correct term to use when referring to the ...
In 1921, Hayes and Patterson used the visual analog scale (VAS) method for the first time to measure and record the pain intensity of patients' medical issues. [7] Throughout the mid-1900s, different types of visual analog scales were developed such as the traditional, graphic and numeric rating scales that all use a continuous line of ...
More recently, Campos and Pérez-Fabello evaluated the reliability and construct validity of the VVIQ and the VVIQ2. [3] Cronbach's reliabilities for both the VVIQ and the VVIQ-2 were found to be high. Estimates of internal consistency reliability and construct validity were found to be similar for the two versions.
Scales should be tested for reliability, generalizability, and validity. Generalizability is the ability to make inferences from a sample to the population, given the scale one have selected. Reliability is the extent to which a scale will produce consistent results.
The Patient-Reported Impact of Scars Measure (PRISM) was developed in 2010 by Galen Research and was the first scar specific patient-reported outcome measure. [148] It consists of two scales: one with 24 items for quality of life, and one with 13 items for symptoms. [149] Systemic lupus erythematosus.
Measurements are gathered from a single rater who uses the same methods or instruments and the same testing conditions. [4] This includes intra-rater reliability. Inter-method reliability assesses the degree to which test scores are consistent when there is a variation in the methods or instruments used. This allows inter-rater reliability to ...
The visual analog scale is a visual scale that has two endpoints: "no pain" and "pain is as bad as it could be". When it was first created people had to physically write their answers on the scale. There are mechanical ones now to make the scoring of them easier. [9]