Data Management Seminar, 9-12th July 2007, Hamburg 1 Data Processing at the IEA DPC

Data Management Seminar, 9-12th July 2007, Hamburg 2 Content Data and Documentation Submission Data Processing at the IEA DPC –Adapting the File Structure –Cleaning Steps Further Schedule Contact Addresses

Data Management Seminar, 9-12th July 2007, Hamburg 3 To be submitted by January 25, 2008 Material to be Submitted to IEA DPC Exported WinW3S database (*.MDB) WinDEM data files (*.DBF) Codebooks for each data file (*.SDB) (including all adaptations made to the structure)

Data Management Seminar, 9-12th July 2007, Hamburg 4 To be submitted by January 25, 2008 Material to be Submitted to IEA DPC 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)

Data Management Seminar, 9-12th July 2007, Hamburg 5 File-Exchange using the IEA DPC 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

Data Management Seminar, 9-12th July 2007, Hamburg 6 Please inform the recipients via 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 DPC WebFTP-Server

Data Management Seminar, 9-12th July 2007, Hamburg 7 Content Data and Documentation Submission Data Processing at the IEA DPC –Adapting the File Structure –Cleaning Steps Further Schedule Contact Addresses

Data Management Seminar, 9-12th July 2007, Hamburg 8 Data Processing at the IEA DPC Data & Codebooks Instruments & Forms INPUT IEA DPC Country Country communication will continue after data send-out! 1. Import to SAS and adapting the file structure

Data Management Seminar, 9-12th July 2007, Hamburg 9 Adapting 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

Data Management Seminar, 9-12th July 2007, Hamburg 10 Structure of the Merged Data Set Variable Value IDQUEST1 IDPUNCH1...,ITPART1..2, IDSCHOOL, IDCLASS, IDSTUD IDCHECK373 TOKEN013 CS2GSEX1 SSYSTEM, Added during cleaning process Example: Student Questionnaire Data File Information: Tracking Forms Information: Student Questionnaire WinDEM (ISGxxxF2.DBF)

Data Management Seminar, 9-12th July 2007, Hamburg 11 Data Processing at the IEA DPC Country Database New Data Structure Reports, Statistics & Docu. INPUT OUTPUT Structure Check Background Cleaning IEA DPC Country ID Cleaning Linkage Cleaning Data & Codebooks Instruments & Forms 2. Cleaning Country communication will continue after data send-out!

Data Management Seminar, 9-12th July 2007, Hamburg 12 Content Data and Documentation Submission Data Processing at the IEA DPC –Adapting the File Structure –Cleaning Steps Further Schedule Contact Addresses

Data Management Seminar, 9-12th July 2007, Hamburg 13 Further 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

Data Management Seminar, 9-12th July 2007, Hamburg 14 Content Data and Documentation Submission Data Processing at the IEA DPC –Adapting the File Structure –Cleaning Steps Further Schedule Contact Addresses

Data Management Seminar, 9-12th July 2007, Hamburg 15 Contact Addresses tel: Web: tel: International Study Center (ISC) IEA Secretariat

Data Management Seminar, 9-12th July 2007, Hamburg 16 Contact Addresses tel: IEA DPC Sampling IEA DPC tel: web-ftp:

Data Management Seminar, 9-12th July 2007, Hamburg 17 Thank you very much for your attention!