The purpose of this study was to investigate the mediating effect of grades, positions, and match results in the causal relationships between achievement-goal orientation and sport flow among middle and high school soccer players. The total data of 448 copies were collected from middle and high school soccer teams while 405 copies were accepted for final analysis without 43, and multi-group confirmatory factor analysis was conducted to the data. The result of latent mean analysis showed that middle school players had significantly higher mean in sense of control of sport flow and transformation of time, and defenders showed significantly higher than offenders in ego orientation and transformation of time, while winning group achieved significantly higher than losing group in all factors except ecstasy. Also multi-group analysis showed that achievement-goal orientation had significant effect on sport flow in middle and high school players, and middle school players had more powerful effect than high school players. Meanwhile, the achievement-goal orientation affected significantly on sport flow in offenders and defenders, and ego orientation of offenders affects on sport flow. task orientation of winning and losing groups had significant effect on sport flow, and ego orientation of winning group showed significant effect on sport flow.

I. 서 론
 Ⅱ. 연구방법
  1. 연구대상
  2. 연구절차
  3. 측정도구
  4. 자료처리 방법
 Ⅲ. 결 과
  1. 측정모델비교와 잠재평균분석
  2. 다집단 구조모형 검증
 Ⅳ. 논의 및 결론
 참고문헌

• 강현우(성균관대학교 스포츠과학과) | Hyun-Woo Kang (Department of Sports Science, Sung kyun Kwan University)
• 장세용(성균관대학교 스포츠과학과) | Se-Yong Jang (Department of Sports Science, Sung kyun Kwan University) Corresponding author