CNT // Country / Economy 3-letter CodeCountry / Economy (ISO 3166 alpha-3)
ISO alpha-3 country/economy code
| 数据集 | pisa2022 · PISA 2022 Student Questionnaire |
| 类型 | categorical |
| 角色 | control |
| 数据文件 | stu |
| 关键词 | country |
| 数据集 | 变量名 | 标签 | 类型 |
|---|---|---|---|
| dhs | v000 | Country Code and Phase | identifier |
| ess10 | cntry | Country | categorical |
| eusilc2022 | DB020 | Country | categorical |
| share_w8 | country | Country | categorical |
| wvs7 | B_COUNTRY | Country | categorical |
| Socioeconomic gradient in math achievement | control |
| Math anxiety and math performance | control |