Gracely Richard H, Kwilosz Donna M
Clinical Pain Section, Neurobiology and Anesthesiology Branch, National Institute of Dental Research, National Institutes of Health, Bethesda, MD 20892 U.S.A.
Pain. 1988 Dec;35(3):279-288. doi: 10.1016/0304-3959(88)90138-8.
The Descriptor Differential Scale (DDS) applies psychophysical principles to clinical pain assessment. It contains 12 descriptor items for each pain dimension assessed. For each item, subjects indicate if their pain either is equal in magnitude to that implied by the anchoring descriptor, or how much greater or lesser on a 10-point graphic scale. The method permits collection of multiple responses, reducing scaling error, and assess both pain magnitude and scaling consistency. Ninety-one patients completed the sensory intensity and unpleasantness forms of the DDS at both 1 and 2 h after surgical extraction of a lower third molar. Results show that the DDS satisfies standard psychometric criteria for reliability, objectivity and item homogeneity. The coefficients found satisfy standard psychometric criteria and improve after elimination of inconsistent profiles.
描述符差异量表（DDS）将心理物理学原理应用于临床疼痛评估。对于每个评估的疼痛维度，它包含12个描述符项目。对于每个项目，受试者需指出他们的疼痛在程度上是否与锚定描述符所暗示的相等，或者在10分制图形量表上比其大多少或小多少。该方法允许收集多个反应，减少量表误差，并评估疼痛程度和量表一致性。91名患者在拔除下颌第三磨牙术后1小时和2小时完成了DDS的感觉强度和不愉快程度表格。结果表明，DDS满足可靠性、客观性和项目同质性的标准心理测量标准。所得到的系数满足标准心理测量标准，并且在消除不一致的概况后有所改善。
