Dixon J S, Bird H A
Ann Rheum Dis. 1981 Feb;40(1):87-9. doi: 10.1136/ard.40.1.87.
Reproducibility along a vertical 10 cm visual analogue scale (VAS) was investigated. Eight normal volunteers attempted to duplicate a set of marked VAS. There was a tendency to estimate too high on the scale, and reproducibility was found to be variable along its length. This indicates that the error involved in the use of VASs is even more complex than previously thought.
研究了沿垂直方向10厘米视觉模拟量表(VAS)的可重复性。八名正常志愿者试图复制一组标记的VAS。存在在量表上估计过高的趋势,并且发现其可重复性沿其长度是可变的。这表明使用VAS所涉及的误差比之前认为的更加复杂。