Table 1. Treatments used in the experiment.

Multiplier Rating No rating
Fixed at 4 Fixed, rating treatment
(3 repetitions with 10 players per repetition)
Fixed, no rating treatment
(3 repetitions with 10 players per repetition)
Varied between 2-6 Variable, rating treatment
(3 repetitions with 10 players per repetition)
Variable, no rating treatment
(3 repetitions with 10 players per repetition)