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Feb 19th, 2017
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  1. > psychometric::CIr(.3, 200)
  2. [1] 0.17 0.42
  3. > sqrt((1-.3^2)/(200-2))
  4. [1] 0.068
  5. > .3 - 1.96 * 0.068
  6. [1] 0.17
  7. > .3 + 1.96 * 0.068
  8. [1] 0.43
  9.  
  10. > psychometric::CIr(.9, 20)
  11. [1] 0.76 0.96
  12. > sqrt((1-.9^2)/(20-2))
  13. [1] 0.1
  14. > .9 + 1.96 * 0.1
  15. [1] 1.1
  16. > .9 - 1.96 * 0.1
  17. [1] 0.7
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