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THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Census to American Community Survey.

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Presentation on theme: "THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Census to American Community Survey."— Presentation transcript:

1 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Census to American Community Survey

2 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Decennial Census  In Census 2000, the census used two forms 1.“Long” Form – Collected the same information as the short form but also collected more in-depth information such as income, education, and language spoken at home 2.“Short” Form – Asked for basic demographic and housing information, such as age, sex, race, how many people lived in the housing unit, and if the housing unit was owned or rented  Only a small portion of the population, called a sample, received the long form.

3 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 1990 Census to 2000 Census 1990 Census2000 Census Number of Children ever born AskedDropped RaceMark Only One Response Mark all that apply Grandparents as caregivers Not AskedAdded

4 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 2010 Census  Short form only  Same basic demographic questions as 2000.  Same geographic detail as 2000

5 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 2010 Census and American Community Survey  2010 Census will focus on counting the U. S. population  The sample data are now collected in the ACS  Same “short form” questions on the ACS

6 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Similarities with Census 2000  Same Questions and many of the same basic statistics  5-year estimates will be produced for same broad set of geographic area including census tracts and block groups

7 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Data from the ACS can be grouped into four categories  Demographic  Social  Economic  Housing

8 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Demographic Characteristics  Sex  Age  Race  Hispanic Origin

9 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Social Characteristics  Education  Marital Status  Fertility  Grandparents  Veterans  Disability Status  Place of Residence 1-year ago  Citizenship  Year of Entry  Language Spoken at Home  Ancestry / Tribal Affiliation

10 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Economic Characteristics  Income  Benefits  Employment Status  Occupation  Industry  Commuting to Work  Place of Work

11 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Housing Characteristics  Tenure  Occupancy and Structure  Housing Value  Taxes and Insurance  Utilities  Mortgage / Monthly Rent

12 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 2000 Census to ACS 2008 2000 Census2008 ACS FertilityNot AskedAdded Marital HistoryNot AskedAdded Health InsuranceNot AskedAdded Place of Residence5 years ago1 year ago

13 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: 2008 Content Changes  Three new questions 1.Health Insurance Coverage 2.Veteran’s Service-related Disability 3.Marital History  Deletion of one question 1. Time and main reason for staying at the address  Changes in some wording and format

14 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Health Insurance Coverage

15 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Veteran’s Service-related Disability

16 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Marital History

17 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Methodology  Sample includes about 3 million addresses each year  Three models of data collection: 1. Mail 2. Phone 3. Personal Visit  Data are collected continuously throughout the year  High levels of quality have been demonstrated

18 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Period Estimates  ACS estimates are period estimates describing the average characteristics over a specified period  Contrast with point-in-time estimates that describe the characteristics of an area on a specific date  1-year, 3-year, and 5-year estimates will be released for geographic areas that meet specific population thresholds

19 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Questions with no specific reference period  Most ACS questions do not stipulate a period of time that should be referenced  Interpretation is yearly average since the data are collected each month and averaged across months

20 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Questions with a specific reference period relative to interview date  Other questions specify a period of time relative to the date of interview  Interpretation is still a yearly average but covering a slightly different period of time than the calendar year

21 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Data Products Release Schedule

22 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science

23 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science What is Sampling Error? Definition The uncertainty associated with an estimate that is based on data gathered from a sample of the population rather than the full population

24 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science What is Non-Sampling Error? Definition: Any error affecting a survey or census estimate apart from sampling error Occurs in complete censuses as well as in sample surveys

25 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science Types of Non-Sampling Error  Non-Response Error  Response Error  Processing Error  Coverage Error

26 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Key Differences from Census 2000  Beginning in 2010, data for small geographic areas will be produced every year versus once every 10 years  Data for larger areas are available now and data for mid size area will be available in December 2008  Census 2000 data describe the population and housing as of April 1, 2000 while the ACS data describe a period of thime and require data for 12 months, 36 months, or 60 months

27 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science American Community Survey: Key Differences from Census 2000  The goal of ACS is to produce data comparable to the Census 2000 long form data  These estimates will cover the same small areas as Census 2000 but with smaller sample sizes  Smaller sample sizes for 5-year ACS estimates results in reductions in the reliability of estimates

28 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science www.census.gov 1 2 3 4

29 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 1 2 3

30 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 1

31 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science

32 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science 2

33 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science

34 THE UNIVERSITY OF MISSISSIPPI The University of Mississippi Institute for Advanced Education in Geospatial Science P28. RELATIONSHIP BY HOUSEHOLD TYPE FOR THE POPULATION UNDER 18 YEARS [17] - Universe: Population under 18 years P34. FAMILY TYPE BY PRESENCE AND AGE OF OWN CHILDREN [20] - Universe: Families Data Set: Census 2000 Summary File 1 (SF 1) 100-Percent Data Mississippi Long Beach, MS Mississippi Long Beach, MS Total:775,1874,695Total:747,1594,696 In households:771,3534,664Married-couple family:520,8443,526 Householder or spouse1,0536With own children under 18 years:234,4841,626 Related child:758,8684,563Under 6 years only52,278323 Own child:657,3124,218Under 6 years and 6 to 17 years46,698314 In married-couple family424,4173,0336 to 17 years only135,508989 In other family:232,8951,185No own children under 18 years286,3601,900 Male householder, no wife present36,723225Other family:226,3151,170 Female householder, no husband present196,172960Male householder, no wife present:45,610283 Other relatives:101,556345With own children under 18 years:22,729154 Grandchild83,593280Female householder, no husband present:180,705887 Other relatives17,96365With own children under 18 years:106,203597 P88. RATIO OF INCOME IN 1999 TO POVERTY LEVEL [10] - Universe: Population for whom poverty status is determined Data Set: Census 2000 Summary File 3 (SF 3) - Sample Data Mississippi Long Beach, MS Total:2,750,67717,488 Under.50249,514658.50 to.74141,743360.75 to.99156,822558 1.00 to 1.24162,332739 1.25 to 1.49165,526601 1.50 to 1.74150,381772 1.75 to 1.8463,125499 1.85 to 1.9984,460513 2.00 and over1,576,77412,788 U.S. Census Bureau Census 2000


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