Scatter plot showing the relationship between the Global Rating Scale (GRS) total score (x-axis) and the Global Assessment of Urological Endoscopic Skills (GAUES) total score (y-axis). Each point represents an individual data entry, illustrating the correlation between these two assessment metrics for ureterorenoscopy (URS) (a), transurethral resection of the bladder (TURB) (b), and transurethral resection of the prostate (TURP) (c). GAUES, Global Assessment of Urological Endoscopic Skills; GRS, Global Rating Scale; TURB, transurethral resection of the bladder; TURP, transurethral resection of the prostate; URS, ureterorenoscopy.