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  • 1. Item characteristic function: probability of a correct response to an item as a function of ability
  • 2. test characteristic function: sum of item characteristic functions, can be used to predict scores of examinees at given ability levels
  • 3. item information function: shows the contribution of items to the assessment of ability (items with high discriminating power contribute more to measurement precision than lower discrimination item)
  • 4. test information function: sum of item information functions, estimates of errors associated with ability estimation
















































  • Transcript

    • 1. A Presentation on Presentations Luis F. Perez Apple Distinguished Educator
    • 2. Classical Theory and IRT Item Response Theory: 4 Features: 1. Item characteristic function: probability of a correct response to an item as a function of ability 2. test characteristic function: sum of item characteristic functions, can be used to predict scores of examinees at given ability levels 3. item information function: shows the contribution of items to the assessment of ability (items with high discriminating power contribute more to measurement precision than lower discrimination item) 4. test information function: sum of item information functions, estimates of errors associated with ability estimation
    • 3. Death by Powerpoint
    • 4. Classical Theory and IRT Item Response Theory: 4 Features: 1. Item characteristic function: probability of a correct response to an item as a function of ability 2. test characteristic function: sum of item characteristic functions, can be used to predict scores of examinees at given ability levels 3. item information function: shows the contribution of items to the assessment of ability (items with high discriminating power contribute more to measurement precision than lower discrimination item) 4. test information function: sum of item information functions, estimates of errors associated with ability estimation
    • 5. Item Response Theory 4 Functions
    • 6. 1. Item Characteristic Function
    • 7. 2. Test Characteristic Function
    • 8. 3. Item Information Function
    • 9. 4. Test Information Function
    • 10. Richard Mayer
    • 11. Dual Coding Theory
    • 12. 3 Steps
    • 13. 3 Steps Plan
    • 14. 3 Steps Plan Design
    • 15. 3 Steps Plan Design Deliver
    • 16. Plan
    • 17. Get Away from the Computer
    • 18. Go Analog Go Analog
    • 19. Go Analog Go Analog
    • 20. 3 Steps Plan Design Deliver
    • 21. Design
    • 22. Keep it simple.
    • 23. Images Add Beauty
    • 24. Slideduments
    • 25. Use More Slides
    • 26. One Idea Per Slide
    • 27. Remove the Noise
    • 28. Sales 2008 Sales A Sales B Quarter 1 15 20 Quarter 2 30 22 Quarter 3 15 33 Quarter 4 15 55
    • 29. Sales 2008 Sales A Sales B Q1 15 20 Q2 30 22 Q3 15 33 Q4 15 55
    • 30. Design Principles Contrast
    • 31. Design Principles Contrast
    • 32. Use Contrast to Highlight Sales A Sales B Q1 15 20 Q2 30 22 Q3 15 33 Q4 15 55
    • 33. Design Principles Alignment
    • 34. Design Principles Alignment
    • 35. Design Principles A B C D Proximity
    • 36. Design Principles A B C D Proximity
    • 37. Use Proximity and Alignment to Organize free images for educators http://pics4learning.com
    • 38. Use Proximity and Alignment to Organize free images for educators http://pics4learning.com/
    • 39. 3 Steps Plan Design Deliver
    • 40. Deliver
    • 41. Deliver
    • 42. Deliver
    • 43. Deliver
    • 44. Deliver
    • 45. To Learn More http://www.presentationzen.com
    • 46. Questions?

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