Is the visual analog scale validated?
The visual analog scale (VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between “no pain” and “worst pain.”
Is the visual analog scale quantitative or qualitative?
Validity (Quantitative): A correlation of 0.75 between VAS printed vertically and a 4-pt descriptive scale rating pain as slight, moderate, severe, or agonizing.
Is VAS qualitative?
A VAS qualitative (VASQ) scale asks patients their current pain level along a continuum of “Good Day,” “Average Day,” or “Bad Day.” We had patients complete both scales and asked them their preference and reason for their choice.
Is the VAS reliable and valid?
The VAS is a reliable, valid, responsive, and frequently used pain outcome measure. It consists of a bidirectional 10 cm straight line with two labels, that is, “no pain” and “worst possible pain”, located at either end of the line.
What type of data is visual analog scale?
A Visual Analogue Scale (VAS) is a measurement instrument that tries to measure a characteristic or attitude that is believed to range across a continuum of values and cannot easily be directly measured. It is often used in epidemiologic and clinical research to measure the intensity or frequency of various symptoms.
What is visual analog scale used for?
A tool used to help a person rate the intensity of certain sensations and feelings, such as pain. The visual analog scale for pain is a straight line with one end meaning no pain and the other end meaning the worst pain imaginable.
What type of variable is a visual analog scale?
Visual Analog Scales (VAS) The placement of that mark is measured and then used as either a continuous variable or the line is broken into segments to create a discrete variable; the latter is often for comparison with Likert-type scales.
Is the VAS pain scale reliability and validity?
Conclusions: Reliability of the VAS for acute pain measurement as assessed by the ICC appears to be high. Ninety percent of the pain ratings were reproducible within 9 mm. These data suggest that the VAS is sufficiently reliable to be used to assess acute pain.