Purpose: Therefore, social desirability, one of common method biases, influenced the research model. This study is intended to verify the mediation effect of self-actualization in the influential relationship between quality of life and the perceived sense of freedom of middle-aged adults participating in the mountain climbing activity. Method: In order to carry out this study, 289 male and female adults who reached the top of mount K were selected through random sampling. In order to analyze data, we carried out descriptive statistics, confirmatory factor analysis, correlation test, structural equation modeling analysis, and multi-group confirmatory factor analysis. Result: In the analysis results, correlation among all variables was shown. And it was shown that middle-aged adults' self-actualization full mediated relationship between perceived sense of freedom and quality of life. In the measurement invariance test results, the goodness-of-fit of model according to gender and age was tested. Therefore, research participants' cross validation was ensured with regard to measurement instrument. Conclusion: Through these results, in case of middle-aged adults who participated in the mountain climbing activity, it was verified that a leisure activity selected by themselves had an effect on the quality of life through self-actualization.

Ⅰ. 서 론
 Ⅱ. 연구방법
  1. 연구대상
  2. 측정도구
  3. 연구절차
  4. 자료분석
 Ⅲ. 결 과
  1. 각 변인의 기초통계량 및 상관관계
  2. 구조모형 검증
  3. 교차타당성 검증
 Ⅳ. 논 의
 참고문헌

• 이근철(서울대학교 체육교육과) | Keun-Chul Lee (Department of Physical Education, Seoul National University)
• 전현수(서울대학교 체육교육과) | Hyun-Soo Jeon (Department of Physical Education, Seoul National University) Corresponding author