Adolescents who experience social anxiety often display distressing fears that unfamiliar individuals evaluate their performance in social settings. These fears typically manifest as fears of negative evaluation (FNE) and/or fears of positive evaluation (FPE). Two well-established survey measures were originally developed to assess these evaluative fears in adults (Brief Fear of Negative Evaluation Scale [BFNE]; Fear of Positive Evaluation Scale [FPES]), and recent work supports their psychometric properties when administered to adolescents and their parents. Yet, do these reports relate to how adolescents behave within anxiety-provoking social interactions germane to their clinical presentations, namely their interactions with unfamiliar peers? We tested this question in a mixed clinical/community sample of 105 adolescents and their parents. Both adolescents and parents completed reports about adolescents’ fears on the BFNE and FPES. Further, trained independent observers rated adolescents’ social anxiety and social skills during the Unfamiliar Peer Paradigm, a set of tasks designed to estimate how adolescents react to social interactions with unfamiliar peers. At the bivariate level, adolescents’ BFNE and FPES reports related to observed social anxiety and social skills, whereas parents’ FPES reports related to observed social anxiety. Further, both informants’ FPES reports demonstrated incremental validity in relation to observed social anxiety, relative to the other informant. Compared to their BFNE reports, adolescents’ FPES reports displayed incremental validity in relation to observed social skills; the reverse was not true for adolescents’ BFNE reports. These findings have important implications for screening and treatment planning assessments when delivering services to adolescents experiencing social anxiety.

患有社交焦虑症的青少年经常会感到不安，因为他们担心陌生的人会评估自己在社交环境中的表现。这些恐惧通常表现为对负面评价（FNE）的恐惧和/或对正面评价（FPE）的恐惧。最初开发了两种完善的调查措施来评估成人中的这些评估恐惧（对负面评价量表的恐惧（BFNE）；对正面评价量表的恐惧（FPES）），最近的工作支持了对青少年及其儿童的心理计量学特性。父母。但是，这些报告是否涉及青少年在与临床表现密切相关的，引起焦虑的社交互动中的行为方式，即与陌生同伴的互动？我们在105名青少年及其父母的混合临床/社区样本中测试了这个问题。青少年和父母都完成了有关青少年对BFNE和FPES的恐惧的报告。此外，训练有素的独立观察员在陌生对等范式期间评估了青少年的社交焦虑和社交技能，这是一组旨在评估青少年对陌生同伴社交互动的反应的任务。在双变量水平上，青少年的BFNE和FPES报告与观察到的社交焦虑和社交技能有关，而父母的FPES报告与观察到的社交焦虑有关。此外，相对于其他被告，两个被告的FPES报告都显示出与观察到的社交焦虑有关的增加的有效性。与他们的BFNE报告相比，青少年的FPES报告在观察到的社交技能方面显示出越来越高的有效性。相反，对于青少年的BFNE报告则并非如此。