ICCS 2009 Technical Report - IEA

Table D.1: List of international and regional student-level conditioning variables for ICCS 2009 (contd.)Variable Variable Label Response Options ScoringConditioning VariablesScaling Variable Missing VariableFSEI Father’s occupational status ISEI score Copy value Valid=0Missing=1(Missing=mean)FISCED 1. Length of dummy code varies across Valid=02. countries; first option is reference Missing=13. category4. 5. (Missing=1)6. She did not completeIS2G10A Interest – mother 1. Very interested 3 Recode as per scoring Valid=0IS2G10B Interest – father 2. Quite interested 2 Missing=13. Not very interested 1 (Missing=median)4. Not interested at all 0IS2G11 Books at home 1. 0–10 books 0 Recode as per scoring Valid=02. 11–25 books 1 Missing=13. 26–100 books 2 (Missing=median)4. 101–200 books 35. 201–500 books 46. More than 500 books 5FAMSTRUC Family structure Derived index Dummy coding for FAMSTRUC Valid=0variable; first option is reference Missing=1categoryIS2G12A Activities—television videos or DVDs 1. No time 0 Recode as per scoring Valid=0IS2G12B Activities—homework study for school 2. Fewer than 30 minutes 1 Missing=1IS2G12C Activities—computer or internet 3. About 30–60 minutes 2 (Missing=median)IS2G12D Activities—reading for enjoyment 4. About 1–2 hours 3IS2G12E Activities—talk friends phone internet 5. More than 2 hours 4IS2G12F Activities—spend time with friendsPOLDISC Discussion of pol. and soc. issues – wle Derived scale Copy scale value Valid=0(Missing=median) Missing=1IS2G13B Activities—watching the news on TV 1. Never or hardly ever 0 Recode as per scoring Valid=0IS2G13C Activities—reading newspaper 2. Monthly (at least once a 1 Missing=1month) (Missing=median)IS2G13E Activities—using the internet 3. Weekly (at least once a 2week)IS2G13H Activities—special interest group 4. Daily or almost daily 3320 ICCS 2009 technical report