Table 2.
Independent variables of the considered dataset. Variables represent demographic information, financial information of students’ families, and information about the school and the area in which the school is located.
| Variable | Description |
|---|---|
| x0 | Year of the study cycle |
| x1 | Portuguese citizenship (1 = Yes) |
| x2 | Portuguese naturality (1 = Yes) |
| x3 | Gender (1 = Female) |
| x4 | Student's age (years) |
| x5 | Number of enrolled years in high school |
| x6 | Number of failures in the educational career |
| x7 | Scholarship |
| x8 | Level of financial support received by government |
| x9 | Availability of a Personal Computer (PC) at home (1 = Yes) |
| x10 | Internet access (1 = Yes) |
| x11 | Class size (# students) |
| x12 | School size (# students) |
| x13 | Economic level of residence area |
| x14 | Population density of residence area |
| x15 | Rural residence area (1 = Rural) |
| x16 | Number of unit courses attended in the present academic year |