Sensitivity and accuracy of the visual analogue scale: a psycho-physical classroom experiment.
Sensitivity and accuracy of the visual analogue scale: a psycho-physical classroom experiment.
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视觉模拟量表的灵敏度和准确性：心理物理课堂实验。
DOI：
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发表时间：
1978
影响因子：
3.4
通讯作者：
C. Maxwell
中科院分区：
文献类型：
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作者：
C. Maxwell
[1] 27名聪明的志愿者参加了两次课堂实验，使用视觉模拟量表对声音的音量进行主观评估。2.它使用简单，基本上可以接受。大的差异是显着的参数检验，但小的有时显着的顺序。受试者内比较比受试者间比较更准确、更敏感。t检验非常稳健。[3] 49个结果中有5个是错误显著的;无论数据如何处理，它们仍然如此。得出的结论是，这是由于在两个会话之间的感知，认知或评分的转变。4次反正弦变换几乎没有差别。并对其机理进行了充分的讨论。转换成比例分数导致灵敏度大大提高。5建议使用视觉模拟量表的作者：在自己的环境中有使用转换的正当理由;呈现其原始分数的分布，或者至少是中位数和范围;还使用简单但不同的测量方法，以证明它们之间的内部一致性。
1 Twenty-seven intelligent volunteers took part in a classroom experiment on two occasions to assess subjectively, ordinally related volumes of sound (offered in random sequence), using the visual analogue scale. 2 It was simple to use and largely acceptable. Big differences were significant by parametric tests but small ones were sometimes significant only with ordinal ones. Within-subject comparisons were more accurate and more sensitive than those between-subjects. The t-test was very robust. 3 Five out of 49 results were erroneously significant; they remained so no matter how the data were handled. It was concluded that this was due to a shift in either perception, cognition or scoring between the two sessions. 4 Arcsine transformations made little difference. The mechanism of these is fully discussed. A conversion to proportional scores resulted in very much improved sensitivity. 5 It is recommended that authors using the visual analogue scale: have valid reason in their own setting for using a transformation; present the distribution, or at least the medians and ranges of their raw scores; also use a simple but different measure so as to demonstrate internal consistency between them.