Table 3 Inter-trial variability of the error distances of the five 9-ball tests among players of different playing levels
From: Development of new 9-ball test protocols for assessing expertise in cue sports
Recreational (R) (n = 8) | University (U) (n = 15) | National (N) (n = 8) | P | ηp2 | Post-hoc | |||
|---|---|---|---|---|---|---|---|---|
Power control [cm] | 52.0 (17.8) | 37.6 (13.3) | 33.5 (9.2) | 0.025* | 0.231 | R > N | ||
Cue alignment [cm] | 6.6 (3.3) | 4.7 (2.1) | 3.1 (1.9) | 0.024* | 0.234 | R > N | ||
Angle [cm] | 10.5 (1.8) | 6.9 (3.3) | 4.2 (1.8) | < 0.001* | 0.449 | R > U | R > N | U > N |
Back spin [cm] | 16.9 (11.0) | 27.9 (5.9) | 25.3 (7.5) | 0.016* | 0.265 | R < U | ||
Top spin [cm] | 11.7 (2.8) | 9.3 (2.8) | 7.7 (2.7) | 0.046* | 0.218 | R > N | ||