| Classification | Extended length (more than 3 hours/day) |
|
| R | p | |
| Boring | .120 | .010* |
| Tiresome | .134 | .004** |
| I can’t pay attention | .062 | .185 |
| Different | .030 | .525 |
| Comfortabel | .085 | .070 |
| Nice | −.041 | .379 |
| Funny | −.074 | .114 |
| Innovative | −.018 | .701 |
| Motivating | .046 | .331 |
| I can’t learn | .042 | .337 |