This study’s main purpose was to examine the psychometric properties of FoMOs’ adaptation among the Indonesian adolescents’ population. The second aim was to investigate the concurrent validity of the Indonesian version to provide evidence for the validity. Also, FoMOs’ difference level between demographic variance analyses was performed. The study involved a cross-sectional online survey design with 638 Indonesian adolescents aged 16–24 (M = 19.08, SD = 14.70). FoMO was measured by a 16-item that has been modified from the original 10-item. Exploratory and confirmatory factor analyses were carried out to study its scores’ evidence of structural validity. Besides, to study its scores’ evidence of convergent, discriminant, and predictive validity concerning other variables such as stress, anxiety, and depression (Depression and Anxiety Stress Scale-21), and general health condition (General Health Questionnaire Scale-12), correlation analyses were conducted. To study the sensitivity, we assessed the effect of sociodemographic and social media use on the scale’s ability to identify the population’s risk to the FoMO by conducting analyses of variance. The Cronbach alpha values (α = .93) indicated that internal consistency of the scale was at an adequate level. Exploratory factorial analyses revealed adequate adjustment for the new version of the scale showing the three factorial structures. Confirmatory factor analyses showed that the 12-item of Indonesian FoMO had a good fit (χ2/df = 289.324/51; goodness-of-fit index (GFI) = 0.928; RMSEA = 0.086; comparative fit index (CFI) = 0.915; normed fit index (NFI) = 0.899; parsimony normed fit index (PNFI) = .695; Tucker–Lewis index (TLI) = 0.890). This study has shown that the modified 12-item Fear of Missing Out Scale is a valid and reliable instrument for Indonesian adolescents. It showed that the Indonesian version of Fear of Missing Out Scale has adequate psychometric properties to measure Indonesian adolescents’ online behavior.

中文翻译：

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印尼版青少年害怕错过量表的验证和心理测量特性

本研究的主要目的是检查印度尼西亚青少年人群中 FoMO 适应的心理测量特性。第二个目的是调查印尼语版本的并发有效性，为有效性提供证据。此外，还进行了人口统计学差异分析之间的 FoMO 差异水平。该研究涉及一项横断面在线调查设计，涉及 638 名 16-24 岁的印度尼西亚青少年（M = 19.08，SD = 14.70）。FoMO 是由原来的 10 项修改后的 16 项来衡量的。进行了探索性和验证性因素分析，以研究其分数的结构有效性证据。此外，为了研究其分数在其他变量（如压力、焦虑、和抑郁（抑郁和焦虑压力量表-21）和一般健康状况（一般健康问卷量表-12），进行了相关分析。为了研究敏感性，我们通过方差分析评估了社会人口统计学和社交媒体的使用对量表识别人口对 FoMO 风险的能力的影响。Cronbach alpha 值 (α = .93) 表明该量表的内部一致性处于足够的水平。探索性因子分析显示对显示三个因子结构的新版本的量表进行了适当的调整。验证性因素分析表明，印度尼西亚 FoMO 的 12 项具有良好的拟合（χ2/df = 289.324/51；拟合优度指数（GFI）= 0.928；RMSEA = 0.086；比较拟合指数（CFI）= 0.915；归一拟合指数 (NFI) = 0.899；简约规范拟合指数 (PNFI) = .695；塔克-刘易斯指数 (TLI) = 0.890)。本研究表明，改良的 12 项害怕错过量表是印度尼西亚青少年有效且可靠的工具。它表明印度尼西亚版的害怕错过量表具有足够的心理测量特性来衡量印度尼西亚青少年的在线行为。