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Local indices of isolation and of concentration with application to social segregation between London secondary schools
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student Primary school Secondary school Attributes 1 A I … 2 A II … 3 B I … 4 C I … 5 C II … 6 B III … … … … …
primary primary primary primary secondary secondary
 
 
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[object Object],[object Object],[object Object]
[object Object],[object Object],Year FSM, i FSM, j 1-FSM, j LID LII 1 0.4 0.3 0.7 0.10 0.28 2 0.6 0.5 0.5 0.10 0.30
[object Object]
[object Object]
 
 
Note: only |LID| is unidirectional (it determines a difference but not which school has the greater proportion of FSM-eligible pupils. All the others rise with FSM-eligibility per school. LII MLII LID |LID| LII 1 0.843 0.766 0.313 MLII 0.843 1 0.819 0.264 LID 0.766 0.819 1 0.206 |LID| 0.313 0.264 0.206 1
[object Object],[object Object],[object Object]
[object Object],[object Object]
Note: Due to data swapping, it is not possible to read values for specific schools from their apparent locations on the map
 
Higher than expected Lower than expected
Directly or indirectly selecting schools tend to have a lower proportion of FSM eligible pupils than their competitors
No evidence that social segregation increased 2003-8. Why?
[object Object],ID 2 3 4 5 6 7 8 37 40 … w ij 0.275 0.131 0.015 0.018 0.262 0.029 0.222 0.005 0.002 … ID 2 6 8 3 7 105 5 4 43 … w ij 0.275 0.262 0.222 0.131 0.029 0.021 0.018 0.015 0.007 … ∑ w ij 0.275 0.537 0.759 0.89 0.918 0.939 0.957 0.972 0.979 …
[object Object],[object Object],[object Object]
[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]

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Local indices of segregation: a case study of London secondary schools

  • 1. Local indices of isolation and of concentration with application to social segregation between London secondary schools
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.  
  • 12. student Primary school Secondary school Attributes 1 A I … 2 A II … 3 B I … 4 C I … 5 C II … 6 B III … … … … …
  • 13. primary primary primary primary secondary secondary
  • 14.  
  • 15.  
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.  
  • 22.  
  • 23. Note: only |LID| is unidirectional (it determines a difference but not which school has the greater proportion of FSM-eligible pupils. All the others rise with FSM-eligibility per school. LII MLII LID |LID| LII 1 0.843 0.766 0.313 MLII 0.843 1 0.819 0.264 LID 0.766 0.819 1 0.206 |LID| 0.313 0.264 0.206 1
  • 24.
  • 25.
  • 26. Note: Due to data swapping, it is not possible to read values for specific schools from their apparent locations on the map
  • 27.  
  • 28. Higher than expected Lower than expected
  • 29. Directly or indirectly selecting schools tend to have a lower proportion of FSM eligible pupils than their competitors
  • 30. No evidence that social segregation increased 2003-8. Why?
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.