Data Dictionary: ACS 2012 (1-Year Estimates)
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Data Source: U.S. Census Bureau
Table: B99234. Imputation Of Weeks Worked In The Past 12 Months For The Population 16 Years And Over [5]
Universe: Universe: Population 16 years and over
Table Details
B99234. Imputation Of Weeks Worked In The Past 12 Months For The Population 16 Years And Over
Universe: Universe: Population 16 years and over
Variable Label
B99234001
B99234002
B99234003
B99234004
B99234005
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2012 Summary File: Technical Documentation.
 
Imputation Rates
Missing data for a particular question or item is called item nonresponse. It occurs when a respondent fails to provide an answer to a required item. The ACS also considers invalid answers as item nonresponse. The Census Bureau uses imputation methods that either use rules to determine acceptable answers or use answers from similar housing units or people who provided the item information. One type of imputation, allocation, involves using statistical procedures, such as within-household or nearest neighbor matrices populated by donors, to impute for missing values.

Overall Person Characteristic Imputation Rate - This rate is calculated by adding together the weighted number of allocated items across a set of person characteristics, and dividing by the total weighted number of responses across the same set of characteristics.

Overall Housing Characteristic Imputation Rate - This rate is calculated by adding together the weighted number of allocated items across a set of household and housing unit characteristics, and dividing by the total weighted number of responses across the same set of characteristics.

These rates give an overall picture of the rate of item nonresponse for a geographic area.


Weeks Worked in the Past 12 Months
The data on weeks worked in the past 12 months were derived from responses to Question 39 in the 2012 American Community Survey, which was asked of people 16 years old and over who indicated that they worked during the past 12 months.

The data pertain to the number of weeks during the past 12 months in which a person did any work for pay or profit (including paid vacation and paid sick leave) or worked without pay on a family farm or in a family business. Weeks of active service in the Armed Forces are also included.