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Aim/background: This study aims to identify the performance tests with the highest discriminatory power for distinguishing between starting and substitute female rugby players. Method: performance tests were administered to the participants. Independent sample t-tests were used to analyze the statistical differences between player groups. Cohen's d effect sizes are also calculated and classified according to the Hopkins. Subsequently, discriminant function analysis was applied to determine which tests had higher discriminatory power between starting and substitute rugby players. Results: , and performance decrease (PD) (all 83.3%). Conclusion: , with their superior discriminatory capabilities, are recommended for accurately assessing performance levels and differentiating player roles on the field, thereby enhancing training and selection processes in rugby.
Gençoglu et al. (Mon,) studied this question.