Adults with autism spectrum disorder (ASD) are at elevated risk for social anxiety disorder (SAD). Limited information exists on the reliability of social anxiety instruments with these adults and their performance when compared to individuals with SAD without ASD. This study examines psychometric properties of self-report social anxiety instruments in autistic adults without intellectual disability, compared to adults with SAD. Additionally, we compared instrument scores between a subgroup of autistic adults with a dual diagnosis of SAD (ASD + SAD) and adults with SAD only. Adults diagnosed with SAD (N = 316) or ASD (N = 102) were recruited from the Brain and Mind Centre in New South Wales, Australia. Sixty autistic participants also received a diagnosis of SAD (ASD + SAD). Participants completed the Liebowitz Social Anxiety Scale–self-report, the Social Interaction Anxiety Scale, the Social Phobia Scale, and the Brief Fear of Negative Evaluation Scale. All instruments showed excellent internal consistency in autistic adults. The instruments showed evidence of convergent validity, and the strength of relationships between measures were equivalent between ASD and SAD groups. For all instruments, performance of these instruments in autistic adults with a SAD diagnosis was very similar to performance in adults diagnosed with SAD but without ASD. Findings support the use of these instruments for identifying social anxiety symptoms in autistic adults without intellectual disability and have utility for mental health clinical services.

中文翻译：

---

自闭症谱系障碍和社交焦虑症的社交焦虑症状：考虑成人队列中自我报告工具的可靠性

患有自闭症谱系障碍 (ASD) 的成年人患社交焦虑症 (SAD) 的风险较高。与没有 ASD 的 SAD 个体相比，关于这些成年人的社交焦虑工具的可靠性及其表现的信息有限。与患有 SAD 的成年人相比，这项研究检查了没有智力障碍的自闭症成年人的自我报告社交焦虑工具的心理测量特性。此外，我们比较了双重诊断 SAD (ASD + SAD) 的自闭症成人亚组和仅患有 SAD 的成人之间的仪器评分。被诊断患有 SAD ( N  = 316) 或 ASD ( N = 102) 是从澳大利亚新南威尔士的大脑和思维中心招募的。60 名自闭症参与者也被诊断为 SAD（ASD + SAD）。参与者完成了 Liebowitz 社交焦虑量表——自我报告、社交互动焦虑量表、社交恐惧量表和负面评价的简短恐惧量表。所有仪器在自闭症成人中都显示出极好的内部一致性。这些工具显示了收敛效度的证据，并且测量之间的关系强度在 ASD 和 SAD 组之间是相同的。对于所有仪器，这些仪器在诊断为 SAD 的自闭症成人中的性能与在诊断为 SAD 但没有 ASD 的成人中的性能非常相似。