AIM To investigate the inter- and intrarater reliability of the Woods and Teuber scale to detect mirror movements in children and adolescents with unilateral cerebral palsy (CP). METHOD A convenience sample of children and adolescents with unilateral CP (n=68; 31 males, 37 females; mean age 12y 2mo, SD 3y 6mo) in Manual Ability Classification levels I to III was recruited from Norway, Australia, and Belgium. Three therapists scored mirror movements according to the Woods and Teuber scale from three video-recorded tasks at two separate time points. A two-way, mixed model regression was used to calculate intraclass correlation coefficients (ICCs) reflecting overall inter- and intrarater reliability. In addition, ICCs for each hand and task were calculated separately. RESULTS The overall interrater reliability ICC was 0.90 and the corresponding intrarater reliability ICC was 0.92. The ICCs for each hand ranged from 0.86 to 0.92 and for each task from 0.63 to 0.89. INTERPRETATION The Woods and Teuber scale shows excellent reliability for scoring mirror movements in children and adolescents with unilateral CP. The assessment is easy to administer with no need for specific equipment and scoring can be determined from short video recordings, making it a feasible instrument in research and clinical practice.

中文翻译：

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单侧脑瘫儿童和青少年镜子运动的评估：Woods 和 Teuber 量表的可靠性

目的 研究 Woods 和 Teuber 量表在检测儿童和青少年单侧脑瘫 (CP) 镜像运动方面的评估者间和评估者内的可靠性。方法 从挪威、澳大利亚和比利时招募了手动能力分类级别为 I 至 III 的单侧 CP 儿童和青少年（n = 68；31 名男性，37 名女性；平均年龄 12 岁 2 个月，SD 3 岁 6 个月）的便利样本。三名治疗师根据 Woods 和 Teuber 量表从两个不同时间点的三个视频录制任务中对镜像运动进行评分。使用双向混合模型回归来计算反映评估者间和评估者内总体可靠性的组内相关系数 (ICC)。此外，每只手和任务的 ICC 是单独计算的。结果 总体评价者间可靠性 ICC 为 0。90 和相应的评委内信度 ICC 为 0.92。每只手的 ICC 范围从 0.86 到 0.92，每个任务的 ICC 范围从 0.63 到 0.89。解释 Woods 和 Teuber 量表在对患有单侧 CP 的儿童和青少年的镜像运动进行评分时显示出极好的可靠性。该评估易于管理，无需特定设备，可通过短视频记录确定评分，使其成为研究和临床实践中的可行工具。