From: Changes in quality of life among Norwegian school children: a six-month follow-up study
 | Mean change a | SD | Est. Mean change b | SEM | Effect size (%) |
---|---|---|---|---|---|
Grade | Â | Â | Â | Â | Â |
Family | |||||
10th | 0.4 | 18.6 | -2.3 | 0.7 | 3.3 |
8th | -1.7 | 16.2 | -2.2*** | 0.8 | Â |
6th | 2.1 | 14.9 | 3.1*** | 0.7 | Â |
4th | 1.0 | 16.7. | 3.2 | 0.7 | Â |
Totalc | 0.5 | 16.8 | - | - | Â |
Friends | |||||
10th | 1.1 | 14.8 | 0.2 | 0.6 | Â |
8th | 1.0 | 15.4 | 0.8 | 0.7 | Â |
6th | 1.4 | 15.7 | 2.4 | 0.7 | Â |
Totald | 1.2 | 15.2 | - | - | Â |
School | |||||
10th | 1.4 | 16.9 | -1.0 | 0.7 | 1.0 |
8th | -0.5 | 15.7 | -0.1* | 0.7 | Â |
6th | -0.3 | 15.1 | 2.2* | 0.7 | Â |
Totald | 0.3 | 16.0 | - | - | Â |
Emotional well-being | |||||
10th | 0.1 | 15.3 | -0.9* | 0.6 | 2.2 |
8th | 0.3 | 14.8 | 0.9* | 0.7 | Â |
6th | 3.2 | 15.0 | 3.8* | 0.6 | Â |
Totald | 1.2 | 15.1 | - | - | Â |
Self-esteem | |||||
10th | 0.5 | 15.6 | -0.3 | 0.8 | Â |
8th | -0.9 | 18.6 | -0.7 | 0.9 | Â |
6th | 0.3 | 16.9 | 1.0 | 0.8 | Â |
4th | -0.3 | 23.4 | -0.3 | 0.8 | Â |
Totalc | -0.1 | 18.9 | - | - | Â |