data management seminar, 9-12th july 2007, hamburg 1 data processing at the iea dpc
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1 Data Management Seminar, 9-12th July 2007, Hamburg
Data Processing at the Data Processing at the IEA DPC IEA DPC
2 Data Management Seminar, 9-12th July 2007, Hamburg
ContentContent
• Data and Documentation Submission
• Data Processing at the IEA DPC– Adapting the File Structure
– Cleaning Steps
• Further Schedule
• Contact Addresses
3 Data Management Seminar, 9-12th July 2007, Hamburg
To be submitted by January 25, 2008
Material to be Submitted to IEA Material to be Submitted to IEA DPCDPC
Exported WinW3S database (*.MDB)
WinDEM data files (*.DBF)
Codebooks for each data file (*.SDB) (including all adaptations made to the structure)
4 Data Management Seminar, 9-12th July 2007, Hamburg
To be submitted by January 25, 2008
Material to be Submitted to IEA Material to be Submitted to IEA DPCDPC
Copy of the national ICCS achievement booklets and questionnaires (1 set per language)
National Adaptations Forms (version IV) (1 set per language)
Copies of all completed Student Tracking and Teacher Tracking Forms returned from schools (hard copies or scanned)
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File-Exchange using the IEA File-Exchange using the IEA DPC WebFTP-ServerDPC WebFTP-Server
The IEA DPC has setup secure FTP sites to exchange materials between countries and the - ISC at ACER and/or- IEA Secretariat and/or - IEA DPC
Can easily be accessed using a web browser (e.g. Internet Explorer)
Each country will receive a separate login
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Please inform the recipients via email as soon you have uploaded any materials
Further information on the IEA DPC WebFTP-Server will be provided in a separate WebFTP-Server Manual
File-Exchange using the IEA File-Exchange using the IEA DPC WebFTP-ServerDPC WebFTP-Server
7 Data Management Seminar, 9-12th July 2007, Hamburg
ContentContent
• Data and Documentation Submission
• Data Processing at the IEA DPC– Adapting the File Structure
– Cleaning Steps
• Further Schedule
• Contact Addresses
8 Data Management Seminar, 9-12th July 2007, Hamburg
Data Processing at the IEA DPCData Processing at the IEA DPC
Data & Codebook
sInstrument
s & Forms
INP
UT
IEA DPC
CountryCountry communication will continue after data
send-out!
1. Import to SAS and adapting the
file structure
9 Data Management Seminar, 9-12th July 2007, Hamburg
Adapting the File StructureAdapting the File Structure
WinW3S database and WinDEM data files are merged and converted to SAS data files
Unique system numbers (CSYSTEM, TSYSTEM, SSYSTEM) are added– System numbers usually correspond to the
position of the record in the original WinDEM data files
– If a data set is missing either in WinW3S or in WinDEM, higher system numbers will be assigned
10 Data Management Seminar, 9-12th July 2007, Hamburg
Structure of the Merged Data Structure of the Merged Data SetSet
Variable ValueIDQUEST 1
IDPUNCH 1
...,ITPART1..2,
IDSCHOOL,
IDCLASS,...
3...
8001
800101
IDSTUD 80010101
IDCHECK 373
TOKEN01 3
CS2GSEX 1
SSYSTEM,... 000001
Addedduring
cleaningprocess
Example: Student Questionnaire Data File
Information:
TrackingForms
Information:Student
Questionnaire
WinDEM(ISGxxxF2.DBF)
11 Data Management Seminar, 9-12th July 2007, Hamburg
Data Processing at the IEA Data Processing at the IEA DPCDPC
Country Databas
eNew Data
Structure
Reports, Statistic
s & Docu.
INP
UT
OU
TP
UTStructur
e Check
Background
Cleaning
IEA DPC
Country
ID Cleaning
Linkage Cleanin
g
Data & Codebook
sInstrument
s & Forms2. Cleaning
Country communication will continue after data send-out!
12 Data Management Seminar, 9-12th July 2007, Hamburg
ContentContent
• Data and Documentation Submission
• Data Processing at the IEA DPC– Adapting the File Structure
– Cleaning Steps
• Further Schedule
• Contact Addresses
13 Data Management Seminar, 9-12th July 2007, Hamburg
Further ScheduleFurther Schedule
Software: – July 23, 2007: WinW3S– August 20, 2007: SurveySystem– August 20, 2007: WinDEM
Documentation in Survey Operations Procedures Manuals:– July 23, 2007: SOP (FT), Unit 2 (WinW3S I)– August 20, 2007: SOP (FT), Unit 3 (WinW3S II,
WinDEM, SurveySystem)
Material Submission for Field Trial: January 25, 2007
14 Data Management Seminar, 9-12th July 2007, Hamburg
ContentContent
• Data and Documentation Submission
• Data Processing at the IEA DPC– Adapting the File Structure
– Cleaning Steps
• Further Schedule
• Contact Addresses
15 Data Management Seminar, 9-12th July 2007, Hamburg
Contact AddressesContact Addresses
tel: +61 3 9255 5555
e-mail:[email protected]
Web: http://iccs.acer.edu.au
tel: +31 20 625 3625 e-mail: [email protected]
InternationalStudy Center (ISC)
IEA Secretariat
16 Data Management Seminar, 9-12th July 2007, Hamburg
Contact AddressesContact Addresses
tel: +49 40 48 500 750
e-mail: [email protected]
IEA DPC Sampling
IEA DPC tel: +49 40 48 500 611
e-mail: [email protected]: https://webftp.iea-
dpc.org
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Thank you very much for your Thank you very much for your attention!attention!