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2 Kim.pptx [Read-Only] - Home | National Academies · 2020. 4. 8. · 2 Unit: Million Us Dollar...
Transcript of 2 Kim.pptx [Read-Only] - Home | National Academies · 2020. 4. 8. · 2 Unit: Million Us Dollar...
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Internet Option in the 2010 Census in Korea
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Unit: Million Us Dollar
$46.8M
1995
$72.5M
2000
$112.1M
2005
$157.2M
2010 1995 2000 2005 2010
15.5%
20.0%
12.7%
23.9%
414
317222
164
Unit: Thousand People
1.7%
2006
2.2%
2007
2.8%
2008
3.6%
2009
Economically Active Population
Source : Korea Internet Security Agency (2010)
70.2%
2002 2004
72.2%
2006
78.4%
2008
80.6%
2010
81.6%
Source : Wall Street Journal (2013)
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DB
Address DB, Household list, Housing DB Pull & Push Strategy
Thank YouNote (e‐mail)
Yes
Yes
Yes
No
No
Create Internet Access Code
Intent toparticipate
• Send SMS to encourage response
Give Internet Access Code
PreparationPreparation
Automatic editingAutomatic editing
PublicCampaignPublicCampaign
Fill Out the FormFill Out the Form
ConfirmConfirm
Finished?Finished?
Electronic management
Re‐contact those who haven’t completed the form
Creating Internet access code by using 32 alphanumeric combinations
‐ Excluding 1, I, 0 and O for potential confusions due to similarities
‐ Administrative districts(3 digits)‐Identification number(4 digits)‐
Verification number (2 digits)
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Visit the webpage forInternet option
Response through Internet Option
For Foreigners Enter Internet Access Code
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For checking logic, edit specifications(88 for short form, 227 for long form) were used.
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The management system automatically managethe input process and report the status.
This household has completed the form
This householdhas not completedthe form
Encoding SSL
External Network Internal Firewall
WEB Sever WEB Sever WAS Sever DB Sever
WEB EXT
WEB WAS DB
Internet
e‐Census System
InternetRouter
Web Firewall ExternalFirewall
WEBFirewall
WASFirewall
DBFirewall
User Security
PC Security
User Security(Level 1)
Network Security(Level 2)
Web Service(Level 3)
Server Security(Level 4)
DB Security(Level 5)
Access Control Web Service Security Security OS Encoding Data
PC keyboard
Web browser
No capture
Encoding SSL
Web FirewallEncoding personalinformation
Controlling accesses to server
Separating internal and external network
Control irregulartraffic
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47.7%
49.3%
short
long
100%
100%
Type of questionnaire
49.6%
40.4%
urban
rural
100%
100%
Urban/Rural
Overall Internet uptake rate : 47.9%
Category Target Participated Uptake Rate
2005 Census 15,890 141 0.9
2010 Census 17,470 8,360 47.9
(unit: thousand households, %)
66
54 50 48
41 38 37 35 34 33 33 32 30
19 16 16 15
12 8 7 5
1 0
10
20
30
40
50
60
70
%
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Reduce the census cost :‐ 10,000 fewer enumerators : $3.9M saved‐ shorter enumeration period(19 days ▶ 16 days) : $10.3M ‐ data processing cost saved : $3.5M
Convenience for response
Dislike the visit by enumerators
2.5%
SafetyIncentive
10.5%11.7%
72.2%
$17.7M
Internet option shows lower omission and duplication rates.
Internet Interview
Net omission rate 0.06 0.80
Omission rate 0.20 1.24
Duplication rate 0.14 0.44
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Internet Interview
Short form 0.08 1.83
Long form 1.27 3.56
No. of mean error
The logic check functions of the Internet option worked effectivelyto secure accurate response.
No. of edit specifications : Short form(88) , Long form(227)
Campaign for Internet Option Pull & Push strategy– incentives / Internet option first
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‐ Hand out gifts by drawings‐ Give students two hour credit for volunteer work
• Internet first
• Incentives
‐ Campaign for Internet survey
• Publicity Campaign
Internet Interview
Source : The evaluation of the Internet Questionnaire for 2015 Census,Youngshil Park, Hyeonjeong Park, Hyejin Kim, Jinwoo Bae, Deokho Kim, Statistical Research Institute (2014)
To design user‐friendly questionnaire‐ eye tracking experiments
To alleviate mode effect by designing questionnaire similar to paper mode‐ redesigning questionnaire pages from matrix form to topic based
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Heat Map
Gaze Plot
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Mixed?
How to read the questionnaire
Left to right?
Up to
down?
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To design user‐friendly questionnaire‐ reflecting the results of eye tracking experiments‐ transform to topic‐based
To maximize success factors in 2010 census‐ pull strategy ‐ incentives‐ push strategy – Internet option first