Underemployment is a multidimensional construct that captures various suboptimal work statuses. Although recent economic depressions and insecure job markets in Korea have increased underemployment, no appropriate scale exists to measure underemployment in a Korean context. Therefore, the aim of this study was to translate the Subjective Underemployment Scales (SUS) into Korean and validate the Korean SUS (K-SUS) with a sample of 427 Korean employees. We found that a bifactor model fit the data best, suggesting a different internal structure from the English version. Scores from the K-SUS were also invariant across gender, age, income, and employment status. In addition, we found evidence for construct validity by relating scores from the K-SUS to similar constructs and indicators of well-being. Findings from the current study help describe Korean employees’ experiences of subjective underemployment and suggest how psychologists, employers, and policy makers can address structural and psychological issues related to underemployment.

中文翻译：

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韩国主观就业不足量表（K-SUS）的背景和验证：Korean Subject Korean Korean척도척도

就业不足是一个多维结构，它捕获了各种次优的工作状态。尽管韩国最近的经济萧条和就业市场不安全加剧了就业不足，但在韩国背景下，尚无合适的量表来衡量就业不足。因此，本研究的目的是将主观就业不足量表（SUS）转换为韩语，并以427名韩国员工为样本对韩语SUS（K-SUS）进行验证。我们发现双因素模型最适合数据，表明内部结构与英文版本不同。来自K-SUS的分数在性别，年龄，收入和就业状况方面也不变。此外，我们通过将K-SUS的得分与相似的构建体和幸福感指标相关联，发现了构建体有效性的证据。