Purpose: Introduction of the LEGO Mindstorms EV3 as a low cost research tool for various studies and to show how study tools could be built using the LEGO with ease. Methods: To show what the LEGO Mindstorms EV3 could do for studies, programming method was described and some example devices used previous papers were reconstructed; EX1 - Selection of left right device for Stoet(2010), EX2 - Time expectation device for Kim and Ryu(2015), and EX3 - Four digits random number generator for Huh and Lee(2015). Time delay of each example device was tested to evaluate effectiveness of the LEGO Mindstorms EV3 as research device. Results: Combination of single execution structure and button switch on the EV3 brick showed 1 ms error of time measurement, and combination of single execution structure and touch sensor showed 10 ms error of time measurement. 1 ms error of time measurement is same accuracy achieved by Windows based computer system.

I. 서 론
 Ⅱ. 연구방법
  1. 연구대상
  2. 실험과제
  3. 실험도구
  4. 실험절차
  5. 프로그래밍 방법
  6. 자료처리 방법
 Ⅲ. 결 과
 Ⅳ. 논의 및 결론
 참고문헌

• 이상철(한국스포츠개발원) | Sang-Cheol Lee (Department of Sport Science, Korea Institute of Sport Science)
• 홍승분(용인대학교 교육대학원) | Seung-Bun Hong (Graduate School of Education, Yongin University) Corresponding author
• 김영숙(한국스포츠개발원) | Young-Sook Kim (Department of Sport Science, Korea Institute of Sport Science)