Home Advantage - Spain Supercopa de Espana

1. Home Advantage : Increased overall performance levels of each team when they play at home venue.

2. Scoring : Increased likelihood of scoring more goals when the teams play at their home venue. Calculated based on the goals scored.

3. Defence : Increased likelihood of conceding less goals when the teams play at their home venue. Calculated based on the goals conceded.

Home Advantage is calculated based on how many more goals each team scores or concedes during their home matches.

This is an accurate way of measuring their home performance as it calculates using more accurate statistics rather than simply relying on match outcomes.