ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Using the IEA IDB Analyzer to merge and analyze data

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Table of contentIntroduction to the IEA IDB AnalyzerInstallation processSelecting and merging dataHands-on training

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Table of contentIntroduction to the IEA IDB AnalyzerInstallation processSelecting and merging dataHands-on training

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Introduction to IDB Analyzer

WHAT IT IS– A software program developed by the IEA

Data Processing and Research Center to analyze the data from ICCS and other IEA surveys

– Calculates correct standard errors when conducting analysis with ICCS

– Uses optimized algorithms for computing means, percentages and regressions

BONUS!– Easy creation of data sets for use in SPSS– Merging countries and/or data levels– Selection of analysis variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

What can it do?For ICCS, compute percentages, means (and SD), correlations, and linear regressions – including their respective standard errorsAllows to analyze data calculating the correct standard errors using JRR (jackknife repeated replication)Enhanced SPSS and MS Excel output including adding titles to tables and column labels

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Why Do We Need IDB Analyzer?

Very common question:“Why can’t I just do this in SPSS?”Answer:“Because of the data structure!”– Sampling is multi-stage, clustered, and

stratified which can not be handled correctly by SPSS (remember the sample design presentation)

– SPSS can not do variance estimation based on replicated weights

IDB Analyzer handles these issues and “adds” the missing features to SPSS!

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Table of contentIntroduction to the IEA IDB AnalyzerInstallation processSelecting and merging dataHands-on training

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Download IDB AnalyzerThe IDB Analyzer is available for download at the IEA website:

– www.iea.nl– Select the “IEA Studies Datasets and Data Analyzers”

subsection– Download the “IDBAnalyzer_Setup.exe” file from there

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Installation processSPSS 11 or higher needs to be installed beforehandAdministrator rights are required for installation processIDB Analyzer has two modules– Merge – our starting point– Analyze

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Installation processDouble click on the setup file (Seminar version: C:\ICCS2009\Software\IDB_Analyzer\IDBAnalyzer_Setup_v2.0.30.33.exe)

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Installation process

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Windows Vista…With Windows Vista an error may occur during the merge process:– "COM object with CLSID {...} is either not

valid or not registered"

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Windows Vista…To solve this problem: – Go to the SPSS installation directory and

select the SPSS main program. – Right click on it and select properties. – Then select the Compatibility tab in the

properties window – Select the ‘Run as Administrator’

checkbox. – Then click ‘OK’ to close the window and

restart IDB Analyzer.

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Table of contentIntroduction to the IEA IDB AnalyzerInstallation processSelecting and merging dataHands-on training

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

How to Open the IDB AnalyzerStart > Programs > IEA > IDB Analyzer > Merge

Module

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

What You Will See …

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge Module

Select...Data

Source Director

y

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

StudyYear Grade

Merge ModuleSelect...Data

Source Director

y

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Edit the country list to edit the country labels

Merge Module

Example: translate „Spain“ to „España”

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge ModuleSave and confirm the change with „Yes“ and „Save“

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge ModuleTo undo change go to „Edit Country List“ „Restore Defaults“ and confirm with „Yes“

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Participants

Merge ModuleSelect...Data

Source Director

yStudyYear Grade

Next>>

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

File Types

Merge ModuleSelect...

Variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

File Types

Merge ModuleSelect...

Variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

File Types

Merge ModuleSelect...

Variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

File Types

Merge ModuleSelect...

Variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

File Types

Merge ModuleSelect...

Variables

ID and Sampling Variables are selected automatically.

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Supported File Type MergesAny student files can be merged together.Any student files can be merged with the School Questionnaire file.Teacher Questionnaire file can be merged with the School Questionnaire file.Student files cannot be merged directly with the Teacher Questionnaire file.

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Define File

Name and Save

Merge Module

File Types

Select...

Variables

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Define File

Name and Save

Merge Module

File Types

Select...

Variables

Start SPSS

SPSS syntax file is stored in specified directory.

IDB Analyzer launches SPSS and opens the syntax file automatically.

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge Module

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge Module

From the SPSS syntax editor choose:– Run > All– The syntax is executed and the merged file is

saved under the location you have chosen in the last step of the IDB Analyzer Merge Module

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Merge Module

You can now start analyzing your data using the Analysis Module of

the IDB Analyzer.

More on this after lunch!

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Thank you for your attention!

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Table of contentIntroduction to the IEA IDB AnalyzerInstallation walkthroughSelecting and merging dataHands-on training

ICCS 2009 IDB Workshop, 18th February 2010, Madrid

Hands-on TrainingCopy files from the USB-stick to your C:\ driveCreate the following folder:

– C:\ICCS2009\WorkInstall IDB Analyzer from

– C:\ICCS2009\Software\IDB_AnalyzerOpen the IDB Analyzer Merge Module

– Define data source: C:\ICCS2009\Data– Select your country– Select all variables from the School Questionnaire file and

the Int. Student Questionnaire file– Define file name: C:\ICCS2009\Work\ICG_ISG_INTC2.sps– Start SPSS

Run all in the *.sps SPSS script to create *.sav SPSS data file