OBJECTIVE Over the past decade, rates of death by suicide have increased among youth. Efficient and effective screening approaches are needed for suicide prevention. Sexual and gender minority youth (SGMY) experience profound disparities, but little is known about subgroups and risk assessments need to be validated. This study tested the psychometric properties and predictive value of a highly efficient computerized adaptive test for suicide risk (CAT-SS) among SGMY. METHODS Participants in two cohort studies of SGMY completed the CAT-SS and validated measures of suicidality in 2018 (n = 1,073) and at their follow-up visit 6 months later (n = 936). Tests of psychometrics and predictive validity were performed. RESULTS Younger, assigned female at birth, nonmonosexual (e.g., bisexual; relative to monosexual), and gender nonconforming or nongender binary (relative to cisgender and transgender) participants had significantly higher CAT-SS scores. None of the CAT-SS items met the threshold for differential item functioning. In longitudinal analyses, prediction of suicidality moved from poor to good accuracy once CAT-SS was included in the model. CAT-SS significantly improved prediction of suicidality over-and-above reported suicidality at a prior wave. CONCLUSIONS The current study validated CAT-SS as a brief predictor of suicide risk in the disproportionately affected population of SGMY. Screening of SGMY in clinical and community settings using CAT-SS could allow for the identification of participants that need services to reduce their risk of future suicide. Results support the need for particular attention to suicide prevention among SGMY who are teenagers, assigned female at birth, nonmonosexual, and gender nonconforming or nongender binary. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译：

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使用计算机自适应测试预测自杀：对性和性别少数青年的两项纵向研究。

目标 在过去十年中，青年自杀死亡率有所上升。预防自杀需要有效的筛查方法。性和性别少数青年 (SGMY) 经历了巨大的差异，但对亚组知之甚少，风险评估需要验证。本研究测试了 SGMY 中高效的自杀风险计算机化自适应测试 (CAT-SS) 的心理测量特性和预测价值。方法 SGMY 的两项队列研究的参与者在 2018 年 (n = 1,073) 和 6 个月后的随访中 (n = 936) 完成了 CAT-SS 和验证的自杀测量。进行了心理测量学和预测效度的测试。结果 更年轻，出生时指定为女性，非单性恋（例如，双性恋；相对于单性恋），性别不合格或非性别二元（相对于顺性别和跨性别）参与者的 CAT-SS 分数显着更高。没有一个 CAT-SS 项目达到差异项目功能的阈值。在纵向分析中，一旦将 CAT-SS 包含在模型中，对自杀的预测就会从较差的准确度变为良好的准确度。CAT-SS 显着改善了对自杀率的预测，超过了前一波报告的自杀率。结论 目前的研究验证了 CAT-SS 作为 SGMY 受不成比例影响的人群中自杀风险的简要预测指标。使用 CAT-SS 在临床和社区环境中筛查 SGMY 可以识别需要服务以降低未来自杀风险的参与者。结果支持需要特别关注青少年、出生时指定为女性、非单性恋、性别不合格或非性别二元性的 SGMY 的自杀预防。（PsycInfo 数据库记录 (c) 2021 APA，保留所有权利）。