{"variable_name":"ID","variable_label":"Student identifier"}
{"variable_name":"SCHOOL_ID","variable_label":"School identifier"}
{"variable_name":"SCHOOL_TYPE","variable_label":"School type (track)"}
{"variable_name":"SEX","variable_label":"Sex of student"}
{"variable_name":"RAVEN_AGE","variable_label":"How old student was in 2009"}
{"variable_name":"RAVEN_WYN","variable_label":"Score on Raven's Progressive Matrices test [0-60]"}
{"variable_name":"KKS_WYN","variable_label":"Score on Cultural Competences Scale [60-240]"}
{"variable_name":"KKS_I_WYN","variable_label":"Score on Cultural Competences Scale - close interpersonal contacts subscale [15-60]"}
{"variable_name":"KKS_ES_WYN","variable_label":"Score on Cultural Competences Scale - social exposition subscale [18-72]"}
{"variable_name":"KKS_A_WYN","variable_label":"Score on Cultural Competences Scale - assertiveness subscale [17-68]"}
{"variable_name":"KNS_WYN","variable_label":"Score on Snyder's Adult Hope Scale [8-64]"}
{"variable_name":"KNS_UZR_WYN","variable_label":"Score on Snyder's Adult Hope Scale - pathways subscale [4-32]"}
{"variable_name":"KNS_SW_WYN","variable_label":"Score on Snyder's Adult Hope Scale - agency subscale [4-32]"}
{"variable_name":"MATH_2009","variable_label":"Score on PISA mathematics test (pseudoEAP estimator)"}
{"variable_name":"READ_2009","variable_label":"Score on PISA reading test (pseudoEAP estimator)"}
{"variable_name":"SCIE_2009","variable_label":"Score on PISA science test (pseudoEAP estimator)"}
{"variable_name":"KR18","variable_label":"Number of persons in a household"}
{"variable_name":"KR19A","variable_label":"Number of children aged 0-6 years in a household"}
{"variable_name":"KR19B","variable_label":"Number of children attending primary schools in a household"}
{"variable_name":"KR19C","variable_label":"Number of children attending lower-secondary schools in a household"}
{"variable_name":"KR19D","variable_label":"Number of children attending upper-secondary schools: general track in a household"}
{"variable_name":"KR19E","variable_label":"Number of children attending upper-secondary schools: mixed track type I in a household"}
{"variable_name":"KR19F","variable_label":"Number of children attending upper-secondary schools: mixed track type II in a household"}
{"variable_name":"KR19G","variable_label":"Number of children attending upper-secondary schools: vocational track in a household"}
{"variable_name":"KR19H","variable_label":"Number of children attending post-secondary schools in a household"}
{"variable_name":"KR19I","variable_label":"Number of children learning on a univeristy level in a household"}
{"variable_name":"hisei","variable_label":"Highest parental occupational status (highest International Socio-Economic Index)"}
{"variable_name":"escs","variable_label":"Index of economic, social and cultural status (WLE)"}
{"variable_name":"pared","variable_label":"Highest parental education in years"}
{"variable_name":"correction","variable_label":"Some very strange correction added to one of the variables"}
{"variable_name":"wealth","variable_label":"Wealth"}
{"variable_name":"hedres","variable_label":"Home educational resources"}
{"variable_name":"cultpos","variable_label":"Cultural Possessions"}
{"variable_name":"homepos","variable_label":"Home Possessions"}
{"variable_name":"income","variable_label":"Houshold monthly income"}
{"variable_name":"csesi","variable_label":"Complex Socio-Economic Status Index"}
{"variable_name":"STAI_S_WYN","variable_label":"Score on State-Trait Anxiety Inventory - state [20-80]"}
{"variable_name":"STAI_C_WYN","variable_label":"Score on State-Trait Anxiety Inventory - trate [20-80]"}
{"variable_name":"ZAMPS_WYN","variable_label":"Zozlak's Artificial Mental Processes Scale"}
{"variable_name":"SES_WYN","variable_label":"Score on Rosenberg's Self-Esteem Scale [10-40]"}
{"variable_name":"studrel","variable_label":"Teacher student Relations"}
{"variable_name":"disclima","variable_label":"Disciplinary climate"}
{"variable_name":"strstrat","variable_label":"Use of structuring and scaffolding strategies"}
{"variable_name":"libuse","variable_label":"Use of Libraries"}
{"variable_name":"ictres","variable_label":"ICT resources"}
{"variable_name":"icthome","variable_label":"ICT availability at home"}
{"variable_name":"ictsch","variable_label":"ICT availability at school"}
{"variable_name":"entuse","variable_label":"ICT internet/entertainment use"}
{"variable_name":"homsch","variable_label":"ICT for school related tasks"}
{"variable_name":"usesch","variable_label":"Use of ICT at school"}
{"variable_name":"highconf","variable_label":"Self-confidence in ICT high level tasks"}
{"variable_name":"attcomp","variable_label":"Attitude towards computers"}
{"variable_name":"rfsintrp","variable_label":"Reading for School: Interpretation of literary texts"}
{"variable_name":"rfsfumat","variable_label":"Reading for School: Functional reading materials"}