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![Page 1: Prepared by the North Dakota Kids Count Sept. 20101 Using the American Community Survey for Children’s Research Dr. Richard Rathge Policy Analyst North.](https://reader035.fdocuments.net/reader035/viewer/2022070400/56649f145503460f94c298e8/html5/thumbnails/1.jpg)
Prepared by the North Dakota Kids Count Sept. 2010 1
Using the American Community Surveyfor Children’s Research
Dr. Richard RathgePolicy Analyst
North Dakota Kids Count
Kids Count Annual Meeting
Baltimore, Md
Sept. 24, 2010
![Page 2: Prepared by the North Dakota Kids Count Sept. 20101 Using the American Community Survey for Children’s Research Dr. Richard Rathge Policy Analyst North.](https://reader035.fdocuments.net/reader035/viewer/2022070400/56649f145503460f94c298e8/html5/thumbnails/2.jpg)
Presentation Objectives:
1. Highlight some key challenges of using ACS for children’s research
2. Illustrate the need for a conceptual shift in the way we approach children’s research when using ACS data
3. Initiate dialogue of implications for research and policy
2Prepared by the North Dakota Kids
Count Sept. 2010
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Key Challenges for children’s research
Effects of longer period estimates Consequences of smaller sample
size Rule changes and their impact on
trend analyses
3Prepared by the North Dakota Kids
Count Sept. 2010
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Period Estimates … ACS vs. Census
Census (conceptually point in time April 1st)
ACS accumulates 12 months (1-year estimate) 36 months (3-year estimate) 60 months (5-year estimate)
Think of shutter speed on camera
4Prepared by the North Dakota Kids
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5Prepared by the North Dakota Kids
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Nebraska ACS Data
Thanks to Jerry Deichert for data
Omaha city was an ACS test sites: 1997-2004 Can examine 1, 3, 5-year data
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7Prepared by the North Dakota Kids
Count Sept. 2010
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8Prepared by the North Dakota Kids
Count Sept. 2010
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9Prepared by the North Dakota Kids
Count Sept. 2010
![Page 10: Prepared by the North Dakota Kids Count Sept. 20101 Using the American Community Survey for Children’s Research Dr. Richard Rathge Policy Analyst North.](https://reader035.fdocuments.net/reader035/viewer/2022070400/56649f145503460f94c298e8/html5/thumbnails/10.jpg)
10Prepared by the North Dakota Kids
Count Sept. 2010
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11Prepared by the North Dakota Kids
Count Sept. 2010
![Page 12: Prepared by the North Dakota Kids Count Sept. 20101 Using the American Community Survey for Children’s Research Dr. Richard Rathge Policy Analyst North.](https://reader035.fdocuments.net/reader035/viewer/2022070400/56649f145503460f94c298e8/html5/thumbnails/12.jpg)
Key Challenges for rural areas
Effects of longer period estimates Consequences of smaller
sample size Rule changes and their impact on
trend analyses
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Count Sept. 2010
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ACS sample size is smaller than Census
One-year sample is 2.5 % of HHs vs 16.7% for Census long form Over five-year period, ACS sample size
is 12.5 percent
Therefore ACS sampling error will be larger
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Cass County, North Dakota (population 132,585)
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People Moving to North Dakota Within the Past Year by State of Origin: 2006 ACS
-500
0
500
1000
1500
2000
2500
Mon
tana
Sou
th D
akot
a
Cal
iforn
ia
Col
orad
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Ariz
ona
Mic
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Tex
as
Okl
ahom
a
Pen
nsyl
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a
Was
hing
ton
Ten
ness
ee
Mis
siss
ippi
Flo
rida
New
Yor
k
Neb
rask
a
Virg
inia
Idah
o
Wis
cons
in
Mis
sour
i
Wyo
min
g
Ore
gon
Ohi
o
Geo
rgia
Iow
a
Illin
ois
New
Mex
ico
Ken
tuck
y
Ala
ska
Nev
ada
Haw
aii
Loui
sian
a
Ala
bam
a
Mas
sach
uset
ts
Mar
ylan
d
Con
nect
icut
Sou
th C
arol
ina
Ark
ansa
s
Nor
th C
arol
ina
Kan
sas
Del
awar
e
Dis
tric
t of
Col
umbi
a
Indi
ana
Mai
ne
New
Ham
pshi
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New
Jer
sey
Pue
rto
Ric
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de I
slan
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Uta
h
Ver
mon
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Wes
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irgin
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State of Origin
Peo
ple
Mo
vin
g to
No
rth
Dak
ota
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Comparison of 1-year, 3-year, and 5-year Estimates of the Percentage of Persons in Poverty for Omaha, NE: 1999-2005 ACS
1999 2000 2001 2002 2003 2004 2005
Single-year estimate
11.4 12.0 11.0 12.3 13.5 13.9 15.3
Single-year MOE
0.8 1.0 1.0 1.5 1.6 1.5 1.5
Three-year estimate
11.4 11.7 12.1 13.2 14.2
Three-year MOE
0.5 0.7 0.8 0.8 0.8
Five-year estimate
11.9 12.5 13.2
Five-year MOE 0.5 0.5 0.6
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Suppression Issues
ACS using suppression similar to the 1970 and 1980 decennial census
Applied to base tables in 1 and 3-year data
Use “data release rules” to protect user from tables “whose reliability is unacceptable”
Suppresses entire table not just unreliable cells
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41 cells which willcause suppressionfor smaller counties
18Prepared by the North Dakota Kids
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Key Challenges for rural areas
Effects of longer period estimates Consequences of smaller sample
size Rule changes and their impact
on trend analyses
19Prepared by the North Dakota Kids
Count Sept. 2010
![Page 20: Prepared by the North Dakota Kids Count Sept. 20101 Using the American Community Survey for Children’s Research Dr. Richard Rathge Policy Analyst North.](https://reader035.fdocuments.net/reader035/viewer/2022070400/56649f145503460f94c298e8/html5/thumbnails/20.jpg)
ACS income not compatible with decennial census data
Decennial census asks income in previous calendar year
ACS asks income in previous 12 months Both are inflation adjusted However, Bureau test results show decennial
income consistently lower than ACS (4.4% nationwide)
Bureau suggests users “exercise caution”
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Residency rules very different
Decennial census- “usual place of residence “using 6+ month” rule.
ACS – current residence during the last 2-months. Attempting to better count seasonal
residents
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What lessons have we learned thus far?
Need to be more mindful of our data users
Rethink how we interpret and disseminate data to the public
Examine ways in which we can better educate ourselves and data user
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ACS Presentation 2010
Dr. Richard Rathge, Policy Analyst North Dakota Kids Count, Fargo, ND
NDSU, IACC 424, Fargo, ND 58108 [email protected] Phone: (701) 231-8621 Fax: (701) 231-
9730 URL: www.ndkidscount.org
23Prepared by the North Dakota Kids
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