Table 1 Variables studied in the Spanish soccer league 2008-2009.
| Group of variables |
Variables or game statistics or performance indicators |
| Variables related to goals scored |
Total shots; Shots on goal; Effectiveness 1. |
| Variables related to offense |
Assists; Crosses; Offsides committed; Fouls received; Corners; Ball possession. |
| Variables related to defence |
Crosses against; Offsides received; Fouls committed; Corners against; Yellow cards; Red cards. |
| Contextual variable |
Venue |
Effectiveness=Shots on goal×100 â„ Total shots
