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An Exploratory Data Analysis of OECDs 2012 PISA Surveys Di Cook Iowa State University Joint exploration with Luke Fostveldt, Alex Shum, Ian Lyttle United Nations EDA DAY Nov 10 2014 " Ti e greatest value of a picture is when

  1. � An Exploratory Data Analysis of OECD’s 2012 PISA Surveys Di Cook Iowa State University � Joint exploration with Luke Fostveldt, Alex Shum, Ian Lyttle United Nations EDA DAY Nov 10 2014

  2. " Ti e greatest value of a picture is when it forces us to notice what we never expected to see." United Nations EDA DAY Nov 10, 2014 2 -30

  3. Education - my expectations Gender gap: “boys are better at math” USA doesn’t perform well compared to other countries Would expect parents, time studying and socioeconomic status to be important. � United Nations EDA DAY Nov 10, 2014 3 -30

  4. DATA Results from 2012 OECD PISA tests: “the world’s global metric for quality, equity and e ffi ciency in school education”. 485,490 students math, science and reading test scores 65 countries, between 100-1500 schools in each Student questionnaires about their environment (635 vars) Parents surveyed on work, life, income (143 vars) Principals provide information about their schools (291 vars) United Nations EDA DAY Nov 10, 2014 4 -30

  5. “Show the data." United Nations EDA DAY Nov 10, 2014 5 -30

  6. Gender & Math 1. Compute means by country and by gender. 2. Show mean di ff erence by country United Nations EDA DAY Nov 10, 2014 6 -30

  7. Gender & Math Colombia Chile Costa Rica Luxembourg Liechtenstein Austria United Nations EDA DAY Nov 10, 2014 7 -30

  8. Gender & Math United Nations EDA DAY Nov 10, 2014 7 -30

  9. Gender & Math United Nations EDA DAY Nov 10, 2014 7 -30

  10. Gender & Math United Nations EDA DAY Nov 10, 2014 7 -30

  11. Gender & Math USA United Nations EDA DAY Nov 10, 2014 7 -30

  12. Gender & Math China Sweden United Nations EDA DAY Nov 10, 2014 8 -30

  13. Gender & Math United Arab Emirates Malaysia Ti ailand Qatar Jordan United Nations EDA DAY Nov 10, 2014 9 -30

  14. Gender & Math United Arab Emirates Malaysia Ti ailand Qatar Jordan Surprised? United Nations EDA DAY Nov 10, 2014 9 -30

  15. Gender & Reading United Nations EDA DAY Nov 10, 2014 10 -30

  16. Gender & Reading Surprised again? United Nations EDA DAY Nov 10, 2014 10 -30

  17. In reading scores, the world is PINK! In EVERY COUNTRY tested GIRLS score signi fi cantly BETTER THAN BOYS. Why don’t we talk about the gender gap in reading? United Nations EDA DAY Nov 10, 2014 1 1 -30

  18. Individuals • Test scores range from 0-1000. • Gaps for math were at most 30 points. • For reading at most 80 points. • Di ff erences are tiny. United Nations EDA DAY Nov 10, 2014 12 -30

  19. Individuals • Test scores range from 0-1000. • Gaps for math were at most 30 points. • For reading at most 80 points. • Di ff erences are tiny. United Nations EDA DAY Nov 10, 2014 12 -30

  20. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. United Nations EDA DAY Nov 10, 2014 13 -30

  21. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. United Nations EDA DAY Nov 10, 2014 13 -30

  22. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. Czech Republic United Nations EDA DAY Nov 10, 2014 13 -30

  23. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. Czech Republic United Nations EDA DAY Nov 10, 2014 13 -30

  24. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. Czech Republic USA United Nations EDA DAY Nov 10, 2014 13 -30

  25. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. Czech Republic USA United Nations EDA DAY Nov 10, 2014 13 -30

  26. Individuals • Even countries with a math gender gap, sometimes have a girl who scored the top mark. Czech Republic USA Uruguay United Nations EDA DAY Nov 10, 2014 13 -30

  27. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. United Nations EDA DAY Nov 10, 2014 14 -30

  28. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. United Nations EDA DAY Nov 10, 2014 14 -30

  29. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. France United Nations EDA DAY Nov 10, 2014 14 -30

  30. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. France United Nations EDA DAY Nov 10, 2014 14 -30

  31. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. France USA United Nations EDA DAY Nov 10, 2014 14 -30

  32. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. France USA United Nations EDA DAY Nov 10, 2014 14 -30

  33. Individuals • And although there is a gender gap in reading in all countries, individually some top reading scores are obtained by boys. France USA Uruguay United Nations EDA DAY Nov 10, 2014 14 -30

  34. Hours spent out studying out of school time and average math score by country United Nations EDA DAY Nov 10, 2014 15 -30

  35. United Nations EDA DAY Nov 10, 2014 15 -30

  36. United Nations EDA DAY Nov 10, 2014 15 -30

  37. United Nations EDA DAY Nov 10, 2014 15 -30

  38. United Nations EDA DAY Nov 10, 2014 15 -30

  39. United Nations EDA DAY Nov 10, 2014 15 -30

  40. United Nations EDA DAY Nov 10, 2014 15 -30

  41. United Nations EDA DAY Nov 10, 2014 15 -30

  42. United Nations EDA DAY Nov 10, 2014 15 -30

  43. Reported truancy and average math score by country United Nations EDA DAY Nov 10, 2014 16 -30

  44. United Nations EDA DAY Nov 10, 2014 16 -30

  45. United Nations EDA DAY Nov 10, 2014 16 -30

  46. United Nations EDA DAY Nov 10, 2014 16 -30

  47. United Nations EDA DAY Nov 10, 2014 16 -30

  48. United Nations EDA DAY Nov 10, 2014 16 -30

  49. United Nations EDA DAY Nov 10, 2014 16 -30

  50. United Nations EDA DAY Nov 10, 2014 16 -30

  51. United Nations EDA DAY Nov 10, 2014 16 -30

  52. Parents in the home and average math score by country United Nations EDA DAY Nov 10, 2014 17 -30

  53. United Nations EDA DAY Nov 10, 2014 17 -30

  54. United Nations EDA DAY Nov 10, 2014 17 -30

  55. United Nations EDA DAY Nov 10, 2014 17 -30

  56. United Nations EDA DAY Nov 10, 2014 17 -30

  57. United Nations EDA DAY Nov 10, 2014 17 -30

  58. United Nations EDA DAY Nov 10, 2014 17 -30

  59. United Nations EDA DAY Nov 10, 2014 17 -30

  60. United Nations EDA DAY Nov 10, 2014 17 -30

  61. United Nations EDA DAY Nov 10, 2014 17 -30

  62. Possessions and average math score by country United Nations EDA DAY Nov 10, 2014 18 -30

  63. United Nations EDA DAY Nov 10, 2014 18 -30

  64. United Nations EDA DAY Nov 10, 2014 18 -30

  65. United Nations EDA DAY Nov 10, 2014 18 -30

  66. United Nations EDA DAY Nov 10, 2014 18 -30

  67. United Nations EDA DAY Nov 10, 2014 18 -30

  68. United Nations EDA DAY Nov 10, 2014 18 -30

  69. United Nations EDA DAY Nov 10, 2014 18 -30

  70. TVs in household (blue) against study place by correlation with math score http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  71. http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  72. http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  73. http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  74. http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  75. http://bit.ly/pisa2012_explorer United Nations EDA DAY Nov 10, 2014 19 -30

  76. EDA & Inference I have just reported a huge number of conclusions based purely on exploratory methods. Do you believe them? Exploratory and inferential ARE NOT mutually exclusive. I could have showed you the exploratory statistics in the context of NOTHING HAPPENING. From this we could have obtained statistical signi fi cance or lack of it. United Nations EDA DAY Nov 10, 2014 20 -30

  77. Here is the math gap exploration placed in the CONTEXT of there being NO MATH GAP … United Nations EDA DAY Nov 10, 2014 21 -30

  78. a b c d Pick the one that is di ff erent e h g f from the others United Nations EDA DAY Nov 10, 2014 22 -30

  79. a b c d e h g f United Nations EDA DAY Nov 10, 2014 22 -30

  80. a b c d Did you pick this one? e h g f United Nations EDA DAY Nov 10, 2014 23 -30

  81. a b c d e h g f United Nations EDA DAY Nov 10, 2014 23 -30

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