Table 1. Descriptive characteristics of schools participating in ISCOLE.
| Country (site) | N (schools) | N (reliability schools) | No. of days per year students attend school, mean (s.d.) | No. of students per school, mean (s.d.) (range) |
No. of grades at school (%) |
No. of students per grade, mean (s.d.) | ||
|---|---|---|---|---|---|---|---|---|
| 3–6 | 7–8 | 9–16 | ||||||
| Australia (Adelaide) | 26 | 2 | 195.3 (4.4) | 404.5 (308.0) (50–1200) | 81 | 19 | 43.8 (27.1) | |
| Brazil (Sao Paulo) | 24 | 2 | 200.3 (1.2) | 717.7 (572.0) (136–2900) | 21 | 29 | 50 | 85.5 (46.7) |
| Canada (Ottawa) | 26 | 2 | 190.8 (5.5) | 388.7 (191.8) (165–894) | 81 | 19 | 50.0 (21.3) | |
| China (Tianjin) | 6 | 2 | 195.8 (9.2) | 1660.3 (820.8) (700–2900) | 100 | 276.7 (136.8) | ||
| Colombia (Bogota) | 20 | 19 | 197.8 (7.3) | 1572.8 (825.0) (441–3400] | 100 | 127.2 (67.5) | ||
| Finland (Helsinki, Espoo and Vantaa) | 25 | 2 | 190.0 (7.6) | 426.3 (142.1) (172–760) | 68 | 4 | 28 | 62.2 (18.3) |
| India (Bangalore) | 10 | 2 | 215.5 (43.2) | 1860.0 (1464.4) (440–5200) | 10 | 90 | 140.6 (98.6) | |
| Kenya (Nairobi) | 29 | 2 | 193.1 (38.2) | 865.2 (511.1) (120–1800) | 10 | 21 | 69 | 103.4 (62.1) |
| Portugal (Porto) | 23 | 2 | 165.7 (13.9) | 781.5 (309.1) (239–1598) | 56 | 35 | 9 | 127.1 (55.4) |
| South Africa (Cape Town) | 20 | 2 | 203.4 (4.8) | 822.5 (326.5) (320–1350) | 5 | 80 | 15 | 107.3 (53.1) |
| United Kingdom (Bath and NE Somerset) | 26 | 2 | 190.5 (4.5) | 293.1 (141.6) (90–720) | 19 | 81 | 46.9 (31.4) | |
| United States (Baton Rouge) | 21 | 14 | 179.2 (1.7) | 620.5 (300.2) (235–1374) | 76 | 24 | 74.2 (25.1) | |