ICCS 2009 Technical Report - IEA

B.7. Cyprus• All eligible schools in Cyprus were selected for ICCS 2009.• There were no school-level exclusions.• No explicit stratification was performed.• Implicit stratification was applied by district (Nicosia, Limassol, Larnaca-Famagusta,Paphos) and urbanization (urban, rural), giving a total of eight implicit strata.• Three classes were sampled in schools with more than six classes; otherwise two classeswere sampled where possible.Table B.7.1: Allocation of student sample in CyprusSchool Participation Status—Student SurveyParticipating SchoolsExplicit Strata Total IneligibleNon-ParticipatingSampled Schools Schools Sampled First Second Schoolsreplacement replacementNone 68 0 68 0 0 0Total 68 0 68 0 0 0Table B.7.2: Allocation of teacher sample in CyprusSchool Participation Status—Teacher SurveyParticipating SchoolsExplicit Strata Total IneligibleNon-ParticipatingSampled Schools Schools Sampled First Second Schoolsreplacement replacementNone 68 0 66 0 0 2Total 68 0 66 0 0 2Note: One school was regarded as non-participating because the within-school participation rate was below 50%.B.8. Czech Republic• Very small schools (fewer than six students in the target grade), special educationalprograms, and schools for disabled students were excluded at the school level.• Explicit stratification was performed by type of education (Gymnázium, Základní škola),resulting in two explicit strata.• Implicit stratification was applied by region (14 regions), giving a total of 28 implicitstrata.• All classrooms were sampled in the selected schools.Table B.8.1: Allocation of student sample in the Czech RepublicSchool Participation Status—Student SurveyParticipating SchoolsExplicit Strata Total IneligibleNon-ParticipatingSampled Schools Schools Sampled First Second Schoolsreplacement replacementGymnázium 18 0 16 1 0 1Základní škola 132 0 105 17 5 5Total 150 0 121 18 5 6Appendices291