The ICCS 2022 Restricted Use Data will only be made available upon special request by researchers. It contains all data freely available in the ICCS 2022 Public Use Data, plus the additional variables listed below.
Researchers who want to use the additional data below need to formally apply and provide reasoning why they would need the additional data. They need to agree not to disclose any individuals.
If you are interested in working with the Restricted Use Data, you will need to apply using the IEA Restricted Use Data Application Form. In addition, you need to sign the Restricted Use Agreement. Please download, complete, and sign both the application form and the agreement, and send it to: data@iea-hamburg.de
The application will be reviewed by IEA staff who will decide upon access to the data. Applicants will get feedback within 3-4 weeks. If access is granted to the applicant, IEA will provide details on how to access the restricted use data.
If you are residing in one of the following countries Andorra, Argentina, Austria, Belgium, Bulgaria, Canada (commercial organization), Croatia, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, Germany, Greece, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Israel, Italy, Japan, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Republic of Cyprus, Republic of Korea, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, or Uruguay, please click here to download the Restricted Use Agreement.
If you are residing in a country not mentioned in the above list, please click here to download the Restricted Use Agreement.
Sampling/Tracking/Identification Variables
| Variable name | Description |
|---|---|
| S_BIRTHM | Date of Student Birth/Month |
| S_BIRTHY | Date of Student Birth/Year |
| T_BIRTHY | Date of Teacher Birth/Year |
| ITDATE | Date of Testing |
| ITDEV | Administration Device/Student |
| IDSTRATE | Explicit Stratum |
| IDSTRATI | Implicit Stratum |
| ITMODE_C | Administration Mode/School |
| ITMODE_T | Administration Mode Teacher |
| ITMODE_SQ | Administration Mode of the Student Questionnaire |
| ITMODE_R | Administration Mode of the Student Regional Questionnaire |
| ITMODE_SA | Administration Mode of the Student Test |
School Questionnaire
| Question | Variable name | Description |
|---|---|---|
| 20 | IC4G20 | Public or Private School |
| 20 (derived) | C_PRIVATE | Public or Private School (derived) |
| 21 | IC4G21A/ IC4G21B | Total School Enrollment (Girls/Boys) |
| 21 (derived) | C_SCSIZE | Total School Enrollment (derived) |
| 22 | IC4G22A/ IC4G22B | Total Enrollment <Target Grade> (Girls/Boys) |
| 22 (derived) | C_GENROL | Total Enrollment <Target Grade> (derived) |