| Score grade 1 | Score grade 3 |
---|
M (SD) | Min–max (n) | M (SD) | Min–max (n) |
---|
Experimental group |
Boys | 43.6 (20.7) | 6–102 (42) | 88.6 (19.9) | 47–121 (39) |
Girls | 48.9 (17.7) | 17–86 (47) | 93.9 (17.3) | 50–127 (45) |
Total | 46.4 (19.2) | 6–102 (89) | 91.4 (18.7) | 47–127 (84) |
Comparison group |
Boys | 40.9 (18.9) | 12–100 (33) | 79.4 (21.0) | 46–153 (31) |
Girls | 41.9 (18.2) | 10–108 (45) | 84.8 (18.2) | 50–135 (43) |
Total | 41.5 (18.4) | 10–108 (78) | 82.5 (19.5) | 46–153 (74) |
- At the end of grade 1 there were no statistically significant differences regarding reading capacity between the index group and comparison group when controlling for age and gender (p-value = n.s.). At the end of grade 3 there were statistically significant differences (p < 0.01) regarding the reading capacity between the experimental and comparison group when controlling for age and gender. Linear regression was used in Stata with the total score as a dependent variable and the independent variables group (Experimental/Comparison), age and gender