List of baseline variables.

Leisure plays a key role in the happiness of youth. Studies have shown that various factors of leisure, such as the type, the time, the cost, and the space, have an influence on the adolescents’ happiness. However, little is known about which of these factors is a major factor in youth’s happiness. The purpose of this study is to explore the leisure factors that determine happiness in adolescents by examining the relationship between happiness and various leisure factors. The study used the method of machine learning to analyze national statistical data, National Leisure Activity Survey. The data used in this study were from the National Leisure Activity Survey 2019, which is a national statistic produced by the Ministry of Culture, Sports and Tourism in the Republic of Korea. The analysis found that leisure perceptions, academic and leisure balance, and public leisure space have a very important impact on the adolescents’ well-being. The findings of this research may contribute to a better understanding of leisure and happiness in adolescents, and will also help adolescents make better use of their leisure time, leading to better leisure lives, and ultimately contribute to raising their level of happiness.休闲活动是影响青少年幸福感的核心因素。已有研究表明，休闲类型、时长、花费与空间等多维度因素，均会对青少年的幸福感产生影响。然而目前学界尚未明确上述休闲因素中，何者为影响青少年幸福感的核心驱动因子。本研究旨在通过剖析幸福感与各类休闲因素间的关联，探究决定青少年幸福感的休闲影响因子。本研究采用机器学习方法，对官方统计数据集《全国休闲活动调查（National Leisure Activity Survey）》展开分析。本研究使用的数据源自2019年版《全国休闲活动调查》，该数据集由大韩民国文化体育观光部（Ministry of Culture, Sports and Tourism）编制发布。分析结果显示，休闲认知、学业与休闲平衡状态以及公共休闲空间，对青少年的福祉水平具有极为重要的影响。本研究成果不仅有助于学界更深入地理解青少年休闲与幸福感的内在关联，还可辅助青少年更合理地规划休闲时间、优化休闲生活质量，最终助力提升青少年的幸福感水平。