Supplement 4 - TIMSS and PIRLS Home · 2013-02-04 · 2012-12-21 13:58 PIRLS 2011 USERTIMSS & PIRLS...

Supplement 4PIRLS 2011 Sampling Stratifi cation Information

PIRLS 2011 User Guidefor the International Database

Copyright © 2013 International Association for the Evaluation of Educational Achievement (IEA)pirls 2011 User Guide for the International DatabaseEdited by Pierre Foy and Kathleen T. Drucker

Publishers: TIMSS & PIRLS International Study Center,Lynch School of Education, Boston CollegeandInternational Association for the Evaluation of Educational Achievement (IEA)

Library of Congress Catalog Card Number: 2013930047ISBN-13: 978-1-889938-14-1

For more information about timss contact:TIMSS & PIRLS International Study CenterLynch School of EducationBoston CollegeChestnut Hill, MA 02467United States

tel : +1-617-552-1600fax: +1-617-552-1203e-mail: [email protected]

Boston College is an equal opportunity, affirmative action employer.Printed and bound in the United States.

PIRLS2011USERGUIDEFORTHEINTERNATIONALDATABASE

SUPPLEMENT4 1

Supplement 4 PIRLS 2011 Sampling Stratification Information

Overview

This supplement contains documentation on the explicit and implicit stratification variables included in the PIRLS 2011 data files. The explicit strata are smaller sampling frames, created from the national sampling frames, from which national samples of schools were drawn. The implicit strata are nested within the explicit strata, and were used for sorting the sampling frame prior to the systematic sampling of the schools. Details of the PIRLS 2011 sample design and implementation are available online at Methods and Procedures in TIMSS and PIRLS 2011.

Stratification Variables

The explicit and implicit stratification variables are named IDSTRATE and IDSTRATI, respectively. Country-specific codes and labels are provided for each stratum. These codes and labels are presented in Exhibits S4.1 and S4.2 for the PIRLS explicit and implicit strata, respectively, and in Exhibits S4.3 and S4.4 for prePIRLS.

Notes and Considerations

The stratification variables contain information useful for secondary analyses. However, users are cautioned that stratification in some countries is very detailed, resulting in strata—either explicit or implicit—with sample sizes that may be too small to produce reliable estimates. Users should exercise caution when drawing conclusions based on estimates obtained from small strata.

The stratification is based on information provided by each country in their school sampling frames. These sampling frames were provided well in advance of data collection—sometimes two years prior. Thus, the stratification information may no longer be appropriate or available when consulting more current sources and differences in a school’s status may occur. Some countries have chosen not to report stratification information, or to limit the amount of detail provided, for reasons of confidentiality.

SECTION1:STUDENTQUESTIONNAIRE

Country Code Label

Australia 1 Australian Capital Territory2 New South Wales3 Northern Territory4 Queensland5 South Australia6 Tasmania7 Victoria8 Western Australia

Austria .A Not AvailableAzerbaijan 1 Low Performance

2 Medium Performance3 High Performance4 Unknown Performance

Belgium (French) 1 Local Board Public Schools2 Public Schools3 Private Dependent Schools

Botswana 2 Central North3 Central South4 North5 South6 South Central7 West

Bulgaria 1 Basic School2 Elementary School3 General School

Canada .A Not AvailableChinese Taipei 1 East

2 Isolated Islands3 Middle4 North5 South

Colombia 1 Schools with MOS - Urban - Public2 Schools with MOS - Urban - Private3 Schools with MOS - Rural - Public4 Schools with MOS - Rural - Private5 Schools without MOS - Urban - Public6 Schools without MOS - Rural - Public7 Schools without MOS - Rural - Private

Croatia 1 One Building Schools2 Multiple Building Schools3 Minority Schools

Czech Republic 1 Extended Education of Languages2 No Extended Education of Languages

Denmark 1 Public2 Private

England 1 Year 53 Year 5 & Year 9

Finland 1 Eastern Finland - Urban and Semi-urban2 Eastern Finland - Rural3 Northern Finland - Urban and Semi-urban4 Northern Finland - Rural5 Southern Finland - Urban and Semi-urban6 Southern Finland - Rural7 Swedish Speaking - Urban and Semi-urban8 Swedish Speaking - Rural9 Western Finland - Urban and Semi-urban

10 Western Finland - RuralFrance 1 Large Schools

2 Small SchoolsGeorgia 1 Grades 4 & 8 - Sida qarTli

2 Grades 4 & 8 - Tbilisi3 Grades 4 & 8 - aWara

Exhibit S4.1: PIRLS 2011 Explicit Stratification Information (Continued)

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Country Code Label


Georgia 4 Grades 4 & 8 - afxazeTi - ltolvilebi5 Grades 4 & 8 - guria6 Grades 4 & 8 - imereTi7 Grades 4 & 8 - kaxeTi8 Grades 4 & 8 - mcxeTa-mTianeTi9 Grades 4 & 8 - qvemo qarTli

10 Grades 4 & 8 - raWa-leGxumi da qvemo svaneTi11 Grades 4 & 8 - samcxe-javaxeTi12 Grades 4 & 8 - samegrelo-zemo svaneTi13 Grade 4

Germany .A Not AvailableHonduras 1 Grade 4 - Public - Urban

2 Grade 4 - Public - Rural3 Grade 4 - Private7 Grades 4 & 8 - Public - Urban8 Grades 4 & 8 - Public - Rural9 Grades 4 & 8 - Private

Hong Kong SAR 2 Aided - Afternoon Shift3 Aided - Morning Shift4 Aided - No Shifts5 Direct Subsidy6 Government8 Private

Hungary 1 Grade 4 - County Seat2 Grade 4 - Capital3 Grade 4 - Rural Area4 Grade 4 - Town9 Grades 4 & 8 - Capital

10 Grades 4 & 8 - County Seat11 Grades 4 & 8 - Rural Area12 Grades 4 & 8 - Town

Indonesia 1 Public - General2 Public - Islamic3 Private - General4 Private - Islamic

Iran, Islamic Rep. of 1 NoneIreland 1 Large Enrolment

2 Medium Enrolment3 Small Enrolment4 Very Small Enrolment

Israel .A Not AvailableItaly 1 Center

2 Northeast3 Northwest4 South5 South Islands

Kuwait 1 Ahmadi2 Asema3 Farwaniya4 Hawalli5 Jahra6 Mubarak

Lithuania 1 Grade 4 - Cities2 Grade 4 - Other Major Cities3 Grade 4 - Small Cities & Villages4 Grade 4 - Vilnius9 Grades 4 & 8 - Cities

10 Grades 4 & 8 - Other Major Cities11 Grades 4 & 8 - Small Cities & Villages12 Grades 4 & 8 - Vilnius

Malta 1 None

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PIRLS2011SAMPLINGSTRATIFICATIONINFORMATION

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Country Code Label


Morocco 1 Private2 Public - Region 13 Public - Region 24 Public - Region 35 Public - Region 46 Public - Region 57 Public - Region 68 Public - Region 79 Public - Region 8

10 Public - Region 911 Public - Region 10

Netherlands 1 High Mean SES2 High to Medium Mean SES3 Medium Mean SES4 Medium to Low Mean SES5 Low Mean SES

New Zealand .A Not AvailableNorthern Ireland 1 Belfast

2 Northeast3 Southeast4 Southern5 Western

Norway 1 Grade 4 - Bokmål2 Grade 4 - Nynorsk or Other5 Grades 4 & 8 - Bokmål6 Grades 4 & 8 - Nynorsk or Other

Oman 1 Grade 4 - International2 Grade 4 - Public3 Grade 4 - Private6 Grades 4 & 8 - International7 Grades 4 & 8 - Public8 Grades 4 & 8 - Private

Poland 1 Village2 Town (Fewer than 20,000 Inhabitants)3 City (20,000 to 100,000 Inhabitants)4 Large City (More than 100,000 Inhabitants)

Portugal 1 Public2 Private

Qatar 1 Grade 43 Grades 4 & 8

Romania 1 Grade 43 Grades 4 & 8 - Unknown Performance4 Grades 4 & 8 - Low Performance5 Grades 4 & 8 - Medium Performance6 Grades 4 & 8 - High Performance7 Grades 4 & 8 - Very High Performance

Russian Federation .A Not AvailableSaudi Arabia 1 Grade 4 - Non Religious Schools - Girls

2 Grade 4 - Non Religious Schools - Boys3 Grade 4 - Religious Schools - Girls4 Grade 4 - Religious Schools - Boys5 Grade 4 - International Schools

Singapore 1 Grade 43 Grades 4 & 8

Slovak Republic 1 Bratislavský - Slovak2 Bratislavský - Hungarian3 Trnavský - Slovak4 Trnavský - Hungarian5 Trenciansky - Slovak6 Nitriansky - Slovak7 Nitriansky - Hungarian8 Žilinský - Slovak



Country Code Label


Slovak Republic 9 Banskobystrický - Slovak10 Banskobystrický - Hungarian11 Prešovský - Slovak12 Košický - Slovak13 Košický - Hungarian

Slovenia 1 Pomurska Region2 Podravska Region3 Koroska Region4 Savinjska Region5 Zasavska Region6 Spodnjeposavska Region7 Jugovzhodna Region8 Osrednjeslovenska Region9 Gorenjska Region

10 Notranjsko-kraska Region11 Goriska Region12 Obalno-kraska Region

South Africa .A Not AvailableSpain 1 Andalusia

2 Aragon3 Asturias4 Balearic Islands5 Basque Country6 Canary Islands7 Cantabria8 Castile and Leon9 Castile-La Mancha

10 Catalonia11 Ceuta and Melilla12 Extremadura13 Galicia14 La Rioja15 Madrid16 Murcia17 Navarra18 Valencia

Sweden 1 No Immigrants2 Low Percentage of Immigrants3 Medium Percentage of Immigrants4 High Percentage of Immigrants5 Newly Opened Schools

Trinidad and Tobago 1 Caroni2 Northeastern3 Port of Spain & Environs4 Southeastern5 St. George East6 St. Patrick7 Tobago8 Victoria

United Arab Emirates 1 Grade 4 - Ajman2 Grade 4 - Fujairah3 Grade 4 - Ras Al Kaimah4 Grade 4 - Sharjah5 Grade 4 - Umm-Al Quwain

11 Grades 4 & 8 - Ajman12 Grades 4 & 8 - Fujairah13 Grades 4 & 8 - Ras Al Kaimah14 Grades 4 & 8 - Sharjah15 Grades 4 & 8 - Umm-Al Quwain21 Grade 4 - Abu Dhabi22 Grade 4 - Al Ain23 Grade 4 - West Region



SUPPLEMENT4 5


Country Code Label


United Arab Emirates 27 Grades 4 & 8 - Abu Dhabi28 Grades 4 & 8 - Al Ain29 Grades 4 & 8 - West Region31 Grade 4 - Dubai33 Grades 4 & 8 - Dubai

United States .A Not AvailableAlberta, Canada 1 Grade 4 - Large Schools

2 Grade 4 - Small Schools3 Grades 4 & 8 - Large Schools4 Grades 4 & 8 - Small Schools

Ontario, Canada 1 Grade 4 - English2 Grade 4 - French5 Grades 4 & 8 - English6 Grades 4 & 8 - French

Quebec, Canada 1 Grade 4 - English2 Grade 4 - French7 Grades 4 & 8 - English8 Grades 4 & 8 - French



Country Code Label

Australia 1 Metropolitan - Catholic2 Metropolitan - Government3 Metropolitan - Independent4 Provincial - Catholic5 Provincial - Government6 Provincial - Independent8 Remote - Government

Austria .A Not AvailableAzerbaijan 1 Baku - Gymnasium & Lyceum

2 Baku - Performance Level 93 Baku - Performance Level 104 Baku - Performance Level 11 (Highest)5 Baku Suburb - Basic & Elementary6 Baku Suburb - Performance Level 57 Baku Suburb - Performance Level 78 Baku Suburb - Performance Level 89 Baku Suburb - Performance Level 9

10 Baku Suburb - Performance Level 1011 Baku Suburb - Performance Level 11 (Highest)12 Refugee School - Basic & Elementary13 Refugee School - Performance Level 1 (Lowest)14 Refugee School - Performance Level 515 Refugee School - Performance Level 616 Refugee School - Performance Level 717 Refugee School - Performance Level 818 Refugee School - Performance Level 919 Refugee School - Performance Level 11 (Highest)20 Regional Center School - Basic & Elementary21 Regional Center School - Gymnasium & Lyceum22 Regional Center School - Performance Level 323 Regional Center School - Performance Level 424 Regional Center School - Performance Level 525 Regional Center School - Performance Level 626 Regional Center School - Performance Level 727 Regional Center School - Performance Level 828 Regional Center School - Performance Level 929 Regional Center School - Performance Level 1030 Regional Center School - Performance Level 11 (Highest)31 Village School - Basic & Elementary32 Village School - Performance Level 233 Village School - Performance Level 334 Village School - Performance Level 435 Village School - Performance Level 536 Village School - Performance Level 637 Village School - Performance Level 738 Village School - Performance Level 839 Village School - Performance Level 940 Village School - Performance Level 1041 Village School - Performance Level 11 (Highest)42 Village School - Secondary School

Belgium (French) 1 Brabant Wallon2 Bruxelles Capitale3 Hainaut4 Liege5 Luxembourg6 Namur

Botswana 1 Low Performance2 Medium Performance3 High Performance4 Unknown Performance

Exhibit S4.2: PIRLS 2011 Implicit Stratification Information (Continued)



SUPPLEMENT4 7


Country Code Label


Bulgaria 1 Capital2 Large City3 Other

Canada .A Not AvailableChinese Taipei 9 NoneColombia .A Not AvailableCroatia 1 Središnja Hrvatska

2 Istocna Hrvatska3 Sjeverna Hrvatska4 Zapadna Hrvatska5 Južna Hrvatska6 Grad Zagreb

Czech Republic .A Not AvailableDenmark 1 NoneEngland 2 Low Performance - Primary School

4 Low Performance - Junior School10 Low to Medium Performance - Primary School12 Low to Medium Performance - Junior School14 Low to Medium Performance - Middle School18 Medium Performance - Primary School20 Medium Performance - Junior School22 Medium Performance -Middle School26 Medium to High Performance - Primary School28 Medium to High Performance - Junior School30 Medium to High Performance - Middle School31 Medium to High Performance - Independent School34 High Performance - Primary School36 High Performance - Junior School38 High Performance - Middle School39 High Performance - Independent School41 Unknown Performance - Primary School45 Unknown Performance - Independent School47 Other48 High Performance - Unknown School Type49 Unknown Performance - Unknown School Type

Finland 1 NoneFrance 1 Public - Priority Education Zone

2 Public - No Priority Education Zone3 Private

Georgia 1 Highlands - Public2 Town - Public3 Town - Private4 Village - Public5 Village - Private

Germany .A Not AvailableHonduras 1 Municipal

2 Official3 Urban4 Rural5 Semi-public

Hong Kong SAR 1 Boys2 Co-Educational3 Girls

Hungary 1 Dél-Alföld2 Dél-Dunántúl3 Közép-Dunántúl4 Közép-Magyarország5 Nyugat-Dunántúl6 Észak-Alföld7 Észak-Magyarország



Country Code Label


Indonesia 1 High Performance2 Medium Performance3 Low Performance

Iran, Islamic Rep. of 1 Ardebil - Public - Boys2 Ardebil - Public - Girls3 Ardebil - Public - Mixed4 Bushehr - Public - Boys5 Bushehr - Public - Girls6 Chaharmahal & Bakhtiyari - Public - Boys7 Chaharmahal & Bakhtiyari - Public - Girls8 Chaharmahal & Bakhtiyari - Public - Mixed

10 East Azerbaijan - Public - Boys11 East Azerbaijan - Public - Girls12 East Azerbaijan - Public - Mixed14 Esfehan - Public - Boys15 Esfehan - Public - Girls16 Esfehan - Public - Mixed17 Esfehan - Private - Boys18 Esfehan - Private - Girls19 Fars - Public - Boys20 Fars - Public - Girls21 Fars - Public - Mixed22 Fars - Private - Boys23 Gilan - Public - Boys24 Gilan - Public - Girls25 Gilan - Public - Mixed26 Gilan - Private - Boys27 Golestan - Public - Boys28 Golestan - Public - Girls29 Golestan - Public - Mixed30 Hamedan - Public - Boys31 Hamedan - Public - Girls32 Hamedan - Public - Mixed33 Hamedan - Private - Boys34 Hormozgan - Public - Boys35 Hormozgan - Public - Girls36 Hormozgan - Public - Mixed37 Hormozgan - Private - Boys38 Ilam - Public - Boys40 Ilam - Public - Mixed41 Kerman - Public - Boys42 Kerman - Public - Girls43 Kerman - Public - Mixed44 Kerman - Private - Boys45 Kerman - Private - Girls46 Kermanshah - Public - Boys47 Kermanshah - Public - Girls48 Kermanshah - Public - Mixed49 Khorasan Razavi - Public - Boys50 Khorasan Razavi - Public - Girls51 Khorasan Razavi - Public - Mixed52 Khorasan Razavi - Private - Girls53 Khuzestan - Public - Boys54 Khuzestan - Public - Girls55 Khuzestan - Public - Mixed56 Khuzestan - Private - Boys58 Kohkiloyeh & Buyerahmad - Public - Girls59 Kohkiloyeh & Buyerahmad - Public - Mixed60 Kurdistan - Public - Boys61 Kurdistan - Public - Girls62 Kurdistan - Public - Mixed63 Lorestan - Public - Boys



SUPPLEMENT4 9


Country Code Label


Iran, Islamic Rep. of 64 Lorestan - Public - Girls65 Lorestan - Public - Mixed66 Lorestan - Private - Boys67 Markazi - Public - Boys68 Markazi - Public - Girls69 Markazi - Public - Mixed70 Mazandaran - Public - Boys71 Mazandaran - Public - Girls72 Mazandaran - Public - Mixed73 Mazandaran - Private - Girls74 North Khorasan - Public - Boys75 North Khorasan - Public - Girls77 North Khorasan - Private - Boys78 Qazvin - Public - Boys79 Qazvin - Public - Girls80 Qazvin - Public - Mixed82 Qom - Public - Boys83 Qom - Public - Girls84 Semnan - Public - Boys86 Sistan & Baluchistan - Public - Boys87 Sistan & Baluchistan - Public - Girls88 Sistan & Baluchistan - Public - Mixed89 South Khorasan - Public - Boys91 South Khorasan - Public - Mixed93 Tehran City - Public - Boys94 Tehran City - Public - Girls95 Tehran City - Private - Boys96 Tehran City - Private - Girls97 Tehran Province - Public - Boys98 Tehran Province - Public - Girls99 Tehran Province - Public - Mixed

100 Tehran Province - Private - Boys102 West Azerbaijan - Public - Boys103 West Azerbaijan - Public - Girls104 West Azerbaijan - Public - Mixed105 Yazd - Public - Boys106 Yazd - Public - Girls107 Yazd - Public - Mixed109 Zanjan - Public - Boys110 Zanjan - Public - Girls111 Zanjan - Public - Mixed

Ireland .A Not AvailableIsrael .A Not AvailableItaly 1 Public

2 PrivateKuwait 1 Boys

2 GirlsLithuania 1 Primary

2 Primary & Kindergarden3 Basic4 Secondary5 Gymnasium

Malta 1 Church2 Independent3 State



Country Code Label


Morocco 4 Rural - Ecole Autonome6 Rural - None7 Rural - Satellite8 Rural - Secteur Scolaire Centre

12 Urban - Ecole Autonome16 Urban - None17 Urban - Satellite18 Urban - Secteur Scolaire Centre

Netherlands 1 Very High Urbanization (≥ 2500 per km) - Small Schools2 Very High Urbanization (≥ 2500 per km) - Large Schools3 High Urbanization (< 2500 per km) - Small Schools4 High Urbanization (< 2500 per km) - Large Schools5 Moderate Urbanization (< 1500 per km) - Small Schools6 Moderate Urbanization (< 1500 per km) - Large Schools7 Low Urbanization (< 1000 per km) - Small Schools8 Low Urbanization (< 1000 per km) - Large Schools9 Very Low Urbanization (< 500 per km) - Small Schools

10 Very Low Urbanization (< 500 per km) - Large SchoolsNew Zealand .A Not AvailableNorthern Ireland 1 Deprivation - Low

2 Deprivation - Low to Moderate3 Deprivation - Moderate4 Deprivation - Moderate to High5 Deprivation - High

Norway 1 Small Community2 Medium Community3 Large Community4 Very Large Community

Oman 1 Urban - Boys2 Urban - Girls3 Urban - Mixed4 Rural - Boys5 Rural - Girls6 Rural - Mixed

Poland 1 Dolnoslaskie2 Kujawsko-Pomorskie3 Lubelskie4 Lubuskie5 Lódzkie6 Malopolskie7 Mazowieckie8 Opolskie9 Podkarpackie

10 Podlaskie11 Pomorskie12 Slaskie13 Swietokrzyskie14 Warminsko-Mazurski15 Wielkopolskie16 Zachodniopomorskie

Portugal 1 Alentejo2 Algarve3 Centro Interior4 Centro Litoral5 Grande Lisboa6 Grande Porto7 Lezíria do Tejo8 Norte Interior9 Norte Litoral

10 Oeste11 Região Autónoma da Madeira12 Região Autónoma dos Açores



SUPPLEMENT4 11


Country Code Label


Qatar 1 Community - Boys2 Community - Girls3 Community - Mixed4 Independent - Boys5 Independent - Girls6 Private - Boys7 Private - Girls8 Private - Mixed

Romania 1 Rural - Central2 Rural - Northeast3 Rural - Northwest4 Rural - South5 Rural - Southeast6 Rural - Southwest7 Rural - West

17 Urban - Central18 Urban - Northeast19 Urban - Northwest20 Urban - South21 Urban - Southeast22 Urban - Southwest23 Urban - West

Russian Federation 1 Rural2 Settlement3 City - Fewer than 50,000 Inhabitants4 City - 50,000 to 100,000 Inhabitants5 City - 100,000 to 450,000 Inhabitants6 City - 450,000 to 680,000 Inhabitants7 City - More than 680,000 Inhabitants

Saudi Arabia 1 Private - Center2 Private - East4 Private - South5 Private - West6 Public - Center7 Public - East8 Public - North9 Public - South

10 Public - West12 Girls - East14 Boys - Center17 Boys - West

Singapore 1 NoneSlovak Republic 1 Public

2 Church or PrivateSlovenia .A Not AvailableSouth Africa .A Not AvailableSpain 1 Public

2 PrivateSweden 1 Grade 4

2 Grades 4 & 8 - Unknown Performance3 Grades 4 & 8 - Low Performance4 Grades 4 & 8 - Low to Medium Performance5 Grades 4 & 8 - Medium Performance6 Grades 4 & 8 - Medium to High Performance7 Grades 4 & 8 - High Performance8 Grades 4 & 8 - Very High Performance

Trinidad and Tobago 1 Denominational2 Government3 Private

United Arab Emirates 1 Other - Arabic - Boys3 Public - Arabic - Boys4 Public - Arabic - Girls



Country Code Label


United Arab Emirates 5 Private - Arabic - Boys6 Private - Arabic - Girls7 Private - Arabic - Mixed8 Private - English - Boys9 Private - English - Girls

10 Private - English - Mixed23 Public - English - Boys24 Public - English - Girls29 Private - English & Arabic - Girls30 Private - English & Arabic - Mixed31 Arabic32 English33 English & Arabic

United States .A Not AvailableAlberta, Canada 2 Other - No Immersion

3 Public - Immersion4 Public - No Immersion5 Private - Immersion

Ontario, Canada 1 Catholic - Barrie Regional Office2 Catholic - London Regional Office3 Catholic - Ottawa Regional Office4 Catholic - Sudbury / North Bay Regional Office6 Catholic - Toronto and Area Regional Office7 Public - Barrie Regional Office8 Public - London Regional Office9 Public - Ottawa Regional Office

10 Public - Sudbury / North Bay Regional Office11 Public - Thunder Bay Regional Office12 Public - Toronto and Area Regional Office13 Private - Ottawa Regional Office14 Private - Toronto and Area Regional Office

Quebec, Canada 1 Public2 Private



SUPPLEMENT4 13


Country Code Label

Botswana 2 Central North3 Central South4 North5 South6 South Central7 West

Colombia 1 Schools with MOS - Urban - Public2 Schools with MOS - Urban - Private3 Schools with MOS - Rural - Public4 Schools with MOS - Rural - Private5 Schools without MOS - Urban - Public6 Schools without MOS - Rural - Public7 Schools without MOS - Rural - Private

South Africa .A Not Available

Country Code Label

Botswana 1 Low Performance2 Medium Performance3 High Performance4 Unknown Performance

Colombia .A Not AvailableSouth Africa .A Not Available

Exhibit S4.3: prePIRLS 2011 Explicit Stratification Information

Exhibit S4.4: prePIRLS 2011 Implicit Stratification Information


pirls.bc.eduCopyright © 2013 International Association for the Evaluation of Educational Achievement (IEA)

ISBN: 978-1-889938-14-1

Supplement 4 - TIMSS and PIRLS Home · 2013-02-04 · 2012-12-21 13:58 PIRLS 2011 USERTIMSS & PIRLS...

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