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Using Visual Analogue Scales in eHealth: Non-Response Effects in a Lifestyle Intervention

Using Visual Analogue Scales in eHealth: Non-Response Effects in a Lifestyle Intervention

Couper et al [17] reported a higher dropout in VAS questionnaires (8.2%) in comparison to questionnaires with radio button scales (4.4%). Frequency of missing values was also higher in the VAS questionnaire version: 6.7% as compared with 1% in radio button scales. They note, however, that these differences are confounded by the use of Java applets in the VAS questionnaire version, which resulted in longer loading times and could have caused technical difficulties.

Tim Kuhlmann, Ulf-Dietrich Reips, Julian Wienert, Sonia Lippke

J Med Internet Res 2016;18(6):e126

Accuracy, Validity, and Reliability of an Electronic Visual Analog Scale for Pain on a Touch Screen Tablet in Healthy Older Adults: A Clinical Trial

Accuracy, Validity, and Reliability of an Electronic Visual Analog Scale for Pain on a Touch Screen Tablet in Healthy Older Adults: A Clinical Trial

Visual analog scales (VAS) for collecting pain data in the traditional paper-based format have been shown to be accurate, valid, reliable, and reproducible [2] across a range of settings. Using paper-based versions of VAS scales requires application of the scale in a standard manner, measurement of the value with a ruler, and then copying of the value into notes or electronic databases. This manual entry is time-consuming and has the potential for transcription or typing errors.

Marie-Louise Dk Bird, Michele L Callisaya, John Cannell, Timothy Gibbons, Stuart T Smith, Kiran DK Ahuja

Interact J Med Res 2016;5(1):e3