Division of Child and Adolescent Psychiatry, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
Acta Anaesthesiol Scand. 2012 Apr;56(4):491-7. doi: 10.1111/j.1399-6576.2011.02587.x. Epub 2011 Dec 12.
The modified Yale Preoperative Anxiety Scale (m-YPAS) is an observational behavioral checklist that has been widely used as an indicator of pre-operative anxiety in children. The present study describes the translation process of m-YPAS into Swedish and the testing of its reliability and validity when used with Swedish children.
The questionnaire was translated using standard forward-back-forward translation technique. The validation process was divided into two phases: a pilot study with 61 children as a first version and a test of a final version with 102 children.
The reliability tested with Cronbach's alpha was acceptable to good. Interrater reliability analyzed with weighted kappa was acceptable to good with Students Registered Nurse Anesthetists and Certified Registered Nurse Anesthetist (CRNA) as evaluators (phase 1) and good to excellent with CRNA's very experienced in child anesthesia (phase 2). Both concurrent and constructed validity could be demonstrated.
This validation study of the Swedish version of the m-YPAS shows good consistency, interrater validity, and construct validity when used by experienced assessors.
改良耶鲁术前焦虑量表（m-YPAS）是一种观察性行为检查表，已被广泛用于评估儿童术前焦虑。本研究描述了将 m-YPAS 翻译成瑞典语的过程，并测试了其在瑞典儿童中使用时的信度和效度。
使用标准的正向-反向-正向翻译技术对问卷进行翻译。验证过程分为两个阶段：第一阶段对 61 名儿童进行初步研究，形成第一版；第二阶段对 102 名儿童进行最终版本的测试。
用克朗巴赫 α 系数测试的信度为可接受至良好。评估者为注册护士麻醉师和认证注册护士麻醉师（CRNA）时，用加权 Kappa 分析的组内信度为可接受至良好（阶段 1），而在非常熟悉儿童麻醉的 CRNA 中为良好至优秀（阶段 2）。同时还证明了该量表具有同时效和结构效度。
对瑞典语版 m-YPAS 的验证研究表明，经验丰富的评估者使用该量表时具有良好的一致性、组内信度和结构效度。
