| Source | Sum of Squares | df | Mean Square | F | p | Eta Squared |
|---|---|---|---|---|---|---|
| – | Appearance self-concept | |||||
| Class | 0.42 | 2 | 0.21 | 0.58 | 0.556 | 0.002 |
| Gender | 31.93 | 1 | 31.93 | 88.96 | 0.000 | 0.121 |
| Class*Gender | 3.47 | 2 | 1.78 | 4.84 | 0.008 | 0.015 |
| Error | 231.53 | 645 | – | – | – | – |
| – | School self-concept | |||||
| Class | 2.54 | 2 | 1.27 | 2.98 | 0.051 | 0.009 |
| Gender | 51.12 | 1 | 51.12 | 119.74 | 0.000 | 0.157 |
| Class*Gender | 3.34 | 2 | 1.67 | 3.91 | 0.020 | 0.012 |
| Error | 275.39 | 645 | – | – | – | – |
| – | Parents relations self-concept | |||||
| Class | 3.27 | 2 | 1.63 | 4.69 | 0.009 | 0.014 |
| Gender | 2.36 | 1 | 2.36 | 6.75 | 0.010 | 0.010 |
| Class*Gender | 2.28 | 2 | 1.14 | 3.266 | 0.039 | 0.010 |
| Error | 225.32 | 645 | – | – | – | – |
| – | Peer relations self-concept | |||||
| Class | 1.73 | 2 | 0.86 | 1.77 | 0.170 | 0.005 |
| Gender | 13.10 | 1 | 13.10 | 26.82 | 0.000 | 0.040 |
| Class*Gender | 2.53 | 2 | 1.26 | 2.59 | 0.076 | 0.008 |
| Error | 315.11 | 645 | – | – | – | – |