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신뢰도 
2014.10.8 초등교육과 명예진
C O N T E N T S
1 
X 
O
1
1
1
1
1
1
1
1 
E
1 
E
1 
E
Review
Review
2
2
2
2
2 
· 한 검사를 같은 대상에게 시간적인 간격을 두고 두 번 실시하여 얻은 점수를 기초로 하여 상관계수를 산출하는 방법 
· 반분하는 방법에 따라 결과가 달라진다 
전체검사의 신뢰도 = 
1+부분 검사 점수간의 상관계수 
2X부분 검사 점수간의 상관계수 
스피어만-브라운 공식
2
2
2 
문항의 점수가 1(=맞음) 혹은 0(=틀림)인 경우 사용 가능 
1/2/3/4/5 형태의 문항 점수에 사용 가능 
문항의 점수가 1 혹은 0인 경우와 1/2/3/4/5 경우에 모두 사용 가능 
신뢰도 계산 공식의 유도과정과 개념을 이해하기 쉬워 
가장 광범위하게 사용. 보통 신뢰도라하면 알파계수를 칭한다 
X
3 
1 
2 
3
3 
1 
검사의 길이를 무한정 증가시켜 신뢰도를 1로 만들 수 있을까? 
X
1 
문항들이 동질일수록 공분산이 
각 문항의 분산이 신뢰도가 
3
1 
3
1 
상이한 점수가 나올 수 있는 범위 
가능 점수 범위가 클수록 신뢰도가 증가 
진위형(OX) 
4지선다 
가능점수범위 
50 ~ 100 
25 ~ 100 
3
1 상이한 점수가 나올 수 있는 범위 가능 점수 범위가 클수록 신뢰도가 증가 
진위형(OX) 
4지선다 
가능점수범위 
50 ~ 100 
25 ~ 100 
3
2 
3
2 
3
3
3
4
4 
신뢰도 계수는 어느 정도여야 적절한가?
4 
신뢰도 계수는 어느 정도여야 적절한가?
4
4
4
평가도구의 질 판단 기준(신뢰도) 66~76 명예진

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평가도구의 질 판단 기준(신뢰도) 66~76 명예진

  • 2. C O N T E N T S
  • 4. 1
  • 5. 1
  • 6. 1
  • 7. 1
  • 8. 1
  • 9. 1
  • 10. 1
  • 11. 1 E
  • 12. 1 E
  • 13. 1 E
  • 16. 2
  • 17. 2
  • 18. 2
  • 19. 2
  • 20. 2 · 한 검사를 같은 대상에게 시간적인 간격을 두고 두 번 실시하여 얻은 점수를 기초로 하여 상관계수를 산출하는 방법 · 반분하는 방법에 따라 결과가 달라진다 전체검사의 신뢰도 = 1+부분 검사 점수간의 상관계수 2X부분 검사 점수간의 상관계수 스피어만-브라운 공식
  • 21. 2
  • 22. 2
  • 23. 2 문항의 점수가 1(=맞음) 혹은 0(=틀림)인 경우 사용 가능 1/2/3/4/5 형태의 문항 점수에 사용 가능 문항의 점수가 1 혹은 0인 경우와 1/2/3/4/5 경우에 모두 사용 가능 신뢰도 계산 공식의 유도과정과 개념을 이해하기 쉬워 가장 광범위하게 사용. 보통 신뢰도라하면 알파계수를 칭한다 X
  • 24. 3 1 2 3
  • 25. 3 1 검사의 길이를 무한정 증가시켜 신뢰도를 1로 만들 수 있을까? X
  • 26. 1 문항들이 동질일수록 공분산이 각 문항의 분산이 신뢰도가 3
  • 27. 1 3
  • 28. 1 상이한 점수가 나올 수 있는 범위 가능 점수 범위가 클수록 신뢰도가 증가 진위형(OX) 4지선다 가능점수범위 50 ~ 100 25 ~ 100 3
  • 29. 1 상이한 점수가 나올 수 있는 범위 가능 점수 범위가 클수록 신뢰도가 증가 진위형(OX) 4지선다 가능점수범위 50 ~ 100 25 ~ 100 3
  • 30. 2 3
  • 31. 2 3
  • 32. 3
  • 33. 3
  • 34. 4
  • 35. 4 신뢰도 계수는 어느 정도여야 적절한가?
  • 36. 4 신뢰도 계수는 어느 정도여야 적절한가?
  • 37. 4
  • 38. 4
  • 39. 4