Grit, which refers to perseverance and passion to pursue long-term goals, has been highlighted as a predictor of better life outcomes, including subjective well-being. For grit to be useful for well-being research, we need to know more about its properties across cultures and determine whether it has a relationship to well-being outcomes beyond other existing psychological measures. Using survey data from the United States and South Korea (N = 1008), this study examines the measurement of grit across cultures as having two dimensions: perseverance of effort and consistency of interest. It then explores the distinctive utility of grit in explaining an individual’s subjective well-being beyond well-established psychological measures such as conscientiousness and sense of control. The results show that gritty people report better subjective well-being; this positive relationship between grit and subjective well-being is largely driven by the perseverance dimension of grit. This dimension accounts for a unique variance in subjective well-being beyond the sense of control in both country samples and variance beyond conscientiousness in the US sample. By contrast, the consistency dimension of grit adds little to our understanding of subjective well-being in either country. Relying on the global grit score, which aggregates the scores of the two dimensions, may obscure the unique role of the perseverance dimension in understanding subjective well-being.

坚韧，指的是坚持不懈和追求长期目标的热情，已被强调为更好的生活结果（包括主观幸福感）的预测指标。为了使砂砾对幸福感研究有用，我们需要更多地了解其在各种文化中的特性，并确定其是否与幸福感结果有关系，而其他现有的心理指标除外。本研究使用来自美国和韩国的调查数据（N = 1008），考察了跨文化对沙砾的测量，该测量具有两个维度：毅力和兴趣的一致性。然后，它探索了勇气在解释个人的主观幸福感方面的独特作用，超越了公认的心理措施，例如尽责和控制感。结果表明，脾气暴躁的人主观幸福感更好；毅力与主观幸福感之间的这种积极关系在很大程度上由毅力的毅力维度驱动。在两个国家样本中，这一维度都说明了主观幸福感的独特差异，而在美国样本中，这超出了出于良心的差异。相比之下，毅力的一致性维度对我们对这两个国家的主观幸福感的理解没有多大帮助。依靠将两个维度的得分相加的全球毅力评分，可能会掩盖毅力维度在理解主观幸福感方面的独特作用。在两个国家样本中，这一维度都说明了主观幸福感的独特差异，而在美国样本中，这超出了出于良心的差异。相比之下，毅力的一致性维度对我们对这两个国家的主观幸福感的理解没有多大帮助。依靠将两个维度的得分相加的全球毅力评分，可能会掩盖毅力维度在理解主观幸福感方面的独特作用。在两个国家样本中，这一维度都说明了主观幸福感的独特差异，而在美国样本中，这超出了出于良心的差异。相比之下，毅力的一致性维度对我们对这两个国家的主观幸福感的理解没有多大帮助。依靠将两个维度的得分相加的全球毅力评分，可能会掩盖毅力维度在理解主观幸福感方面的独特作用。