In this study, we aimed to offer a conceptualization of positive body image during adolescence and psychometrically examine a new scale developed to measure this conceptualization. A literature review on positive body image and adolescence was conducted, which shaped the development of the Positive Body Image among Adolescents Scale (PBIAS). In Study 1, four focus groups (totaling 14 adolescents) from Belgium explored the content, clarity, and applicability of the PBIAS items. In Study 2, an exploratory factor analysis (N = 565; M_age = 14.9, 63.8 % girls) revealed 4 factors: body self-appreciation, body other-appreciation, resilience against media body ideals, and resilience against negative appearance feedback. This 4-factor structure was confirmed in Study 3 (N = 718; M_age = 15.2, 50.4 % girls), and gender invariance was upheld. The test-retest reliability of the PBIAS scores was partially supported in Study 4 (N = 309, M_age = 15.3, 66.3 % girls). Across studies, internal consistency was supported and construct validity (convergent and incremental) evidence was garnered. Further, the PBIAS was translated from Dutch to English to offer researchers an option for collecting data in English-speaking countries. Overall, the PBIAS is a brief measure with psychometric support that assesses four dimensions of adolescent positive body image.

在这项研究中，我们旨在提供青春期积极身体形象的概念化，并从心理测量学角度检查为衡量这种概念化而开发的新量表。对积极的身体形象和青春期进行了文献综述，这塑造了青少年积极身体形象量表（PBIAS）的发展。在研究 1 中，来自比利时的四个焦点小组（总共 14 名青少年）探讨了 PBIAS 项目的内容、清晰度和适用性。在研究 2 中，探索性因素分析（N = 565；M_年龄= 14.9，63.8 % 女孩）揭示了 4 个因素：身体自我欣赏、身体其他欣赏、对媒体身体理想的适应能力和对负面外表反馈的适应能力。这种 4 因子结构在研究 3 中得到证实（N = 718；M_年龄= 15.2，50.4 % 女孩），并且性别不变性得到维护。PBIAS 分数的重测信度在研究 4 中得到部分支持（N = 309，M_年龄= 15.3，66.3 % 女孩）。在整个研究中，内部一致性得到支持，并获得了结构效度（收敛和增量）证据。此外，PBIAS 已从荷兰语翻译成英语，为研究人员提供了在英语国家收集数据的选择。总体而言，PBIAS 是一种带有心理测量支持的简短测量，可评估青少年正面身体形象的四个维度。