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Maximising the quality of population estimates from the 2011 UK census

Maximising the quality of population estimates from the 2011 UK census Owen Abbott, Garnett Compton, Cal Ghee 30 September 2013. Agenda. Strategic aim 2001 v 2011 Maximising quality Hard to count populations Measuring undercount Results Conclusions. 2001 evaluation. £.

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Maximising the quality of population estimates from the 2011 UK census

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  1. Maximising the quality of population estimates from the 2011 UK census Owen Abbott, Garnett Compton, Cal Ghee 30 September 2013

  2. Agenda Strategic aim 2001 v 2011 Maximising quality Hard to count populations Measuring undercount Results Conclusions

  3. 2001 evaluation £

  4. 2011 strategic aim • Aim: • Maximise overall response • Minimise variation in response • Quality targets: • Overall response rate 94%, AND • All local authorities > 80%

  5.      2001       ?

  6. 2011  www. i

  7. Simulations  

  8. Components of strategy • Hard to count index • Questionnaire content and design • Census collection and design • Communications • Coverage assessment

  9. Components of strategy • Hard to count index • Questionnaire content and design • Census collection and design • Communications • Coverage assessment

  10. Hard to Count f1?  f4?     f2?      f5? f3? 

  11. Hard to count Index HTC-1 40% of LSOAs (easiest) HTC-2 40% of LSOAs HTC-3 10% of LSOAs HTC-4 8% of LSOAs HTC-5 2% of LSOAs (hardest)

  12. Census collection HtC-1 HtC-2 HtC-3 HtC-4 HtC-5

  13.      Census collection                     www. i

  14. Consistency across areas/HtC            

  15. Measuring undercount   

  16. Measuring undercount • Coverage survey • Dual-system estimation • Ratio estimation HtC HtC age/sex

  17. Census response rates, 2001 and 2011

  18. 2011 and 2001 response rates, by age and sex

  19. Summary  • Aim: • Maximise overall response • Minimise variation in response HtC  www.      i   

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