Figure 1.
Figure 2.
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Figure 5.
Product correlation coefficient of overall iGeo results and selected socio-economic variables
| Indicator | Pearson's product-moment coefficient with total iGeo results | r2 |
|---|---|---|
| GDP per capita of the country | **0.463 | 0.21 |
| expenditure on education (in % of GDP) | −0.043 | 0.00 |
| length of schooling | **0.439 | 0.19 |
| urbanization | *0.299 | 0.09 |
| share of students in private schools | −0.034 | 0.00 |
| share of students enrolled in the upper sec. ed. | **0.423 | 0.18 |
| share of students studying general education in upper sec. school | *−0.232 | 0.05 |
| expected length of schooling in secondary education | *0.263 | 0.07 |
| average learning outcomes, 2020 | **0.594 | 0.35 |
| upper secondary school completion rate (%) | **0.377 | 0.14 |
| English proficiency level (EF EPI) | **0.374 | 0.14 |
Pearson's product–moment coefficient of success in individual parts of iGeo as a function of the number of times individuals and states participate
| Written test | Fieldwork test | Multimedia test | Overall successrate | |
|---|---|---|---|---|
| Number of participants from a given state | **0.665 | **0.659 | **0.587 | **0.685 |
| Number of times individual states participate | **0.548 | **0.546 | **0.604 | **0.584 |