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Handling of Missing Data Pres. 8

Handling of Missing Data Pres. 8. Missing Data. Why are some data missed? Refusals Item non-response Time constraints Paucity of resources Lax enumerators Units not found Insufficient data for matching, etc. Treatment of Missing Data. Two types of missing data

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Handling of Missing Data Pres. 8

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  1. Handling of Missing Data Pres. 8 United Nations Regional Workshop on the 2010 World Programme on Population and Housing Censuses: Census Evaluation and Post Enumeration Surveys, Addis Ababa, Ethiopia, 14-18 September 2009

  2. Missing Data United Nations Regional Workshop on the 2010 World Programme on Population and Housing Censuses: Census Evaluation and Post Enumeration Surveys, Addis Ababa, Ethiopia, 14-18 September 2009 Why are some data missed? Refusals Item non-response Time constraints Paucity of resources Lax enumerators Units not found Insufficient data for matching, etc.

  3. Treatment of Missing Data United Nations Regional Workshop on the 2010 World Programme on Population and Housing Censuses: Census Evaluation and Post Enumeration Surveys, Addis Ababa, Ethiopia, 14-18 September 2009 Two types of missing data Unit missing data - Household non-interview Item missing data - When some information for household or person is available and some information is not available

  4. Treatment of Missing Data (contd.) United Nations Regional Workshop on the 2010 World Programme on Population and Housing Censuses: Census Evaluation and Post Enumeration Surveys, Addis Ababa, Ethiopia, 14-18 September 2009 • Unit non-response - weighting as a method for compensation • No adjustment for vacant, demolished or not found • Item missing data – • Demographic characteristics - imputation to allow the production of DSE by these characteristics • Assign probabilities for unresolved • P-sample people match status or census day residence status • E-sample people enumeration status (correct or erroneous)

  5. Thank You! United Nations Regional Workshop on the 2010 World Programme on Population and Housing Censuses: Census Evaluation and Post Enumeration Surveys, Addis Ababa, Ethiopia, 14-18 September 2009

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