The Yale–Brown Obsessive–Compulsive Scale (Y-BOCS) is a widely used clinician-rated interview to assess the presence and severity of obsessive–compulsive disorder (OCD). The scale is revised (Y-BOCS-II) to overcome several psychometric limitations, for example by extending the scoring for better discrimination within higher severity levels. The aim of the present study was to examine the responsiveness and other psychometric properties of the Y-BOCS-II Severity Scale in a Dutch clinical sample. The Y-BOCS-II is translated into Dutch and administered to 110 patients seeking therapy for OCD. This was done twice, before and after treatment. The original Y-BOCS was simultaneously rated. Self-report measures regarding depression, symptom severity and OCD symptoms were assessed. The Y-BOCS-II has a good internal consistency (Cronbach's α = 0.84), test–retest (intraclass correlation coefficient [ICC] = 0.89) and interrater reliability (ICC = 0.98). The construct validity proved to be modest to good. The responsiveness over time was in favour of the Y-BOCS-II, compared with the Y-BOCS-I, particularly in the moderate–severely affected OCD patients. The Y-BOCS-II Severity Scale is a reliable and valid instrument for accurately assessing the severity of OCD symptoms and for measuring treatment-induced change. This second version also has clinical and psychometric advantages over the Y-BOCS-I. When these findings are sufficiently replicated, use of the Y-BOCS-II as the new common standard seems recommendable.

中文翻译：

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Yale-Brown Obsessive-Compulsive Scale Severity Scale—第二版在荷兰临床样本中的反应性和其他心理测量特性

耶鲁-布朗强迫症量表 (Y-BOCS) 是一种广泛使用的临床医生评级访谈，用于评估强迫症 (OCD) 的存在和严重程度。该量表经过修订 (Y-BOCS-II) 以克服一些心理测量学限制，例如通过扩展评分以在更高的严重性级别内更好地辨别。本研究的目的是检查荷兰临床样本中 Y-BOCS-II 严重程度量表的反应性和其他心理测量特性。Y-BOCS-II 被翻译成荷兰语，用于 110 名寻求 OCD 治疗的患者。这在治疗之前和之后进行了两次。原 Y-BOCS 同时进行了评级。评估了有关抑郁症、症状严重程度和强迫症症状的自我报告措施。Y-BOCS-II 具有良好的内部一致性（Cronbach'sα  = 0.84）、重测（组内相关系数 [ICC] = 0.89）和评估者间信度（ICC = 0.98）。结构效度被证明是适度到好的。与 Y-BOCS-I 相比，随着时间的推移，Y-BOCS-II 的反应性有利于 Y-BOCS-II，特别是在中度至重度受影响的强迫症患者中。Y-BOCS-II 严重程度量表是准确评估强迫症症状严重程度和测量治疗引起的变化的可靠和有效的工具。与 Y-BOCS-I 相比，第二个版本还具有临床和心理测量方面的优势。当这些发现被充分复制时，使用 Y-BOCS-II 作为新的通用标准似乎是值得推荐的。