Data collection
foam vulva, CDG
DILATION
We developed seven simulation models in our laboratory, externally consisting in a foam vulva coated with rubber, measuring 15 cm in height, 13 cm in width and 13 cm in depth; behind it there was an opening through which the cervix was fitted with the dilation chosen for the study and, so that there was no displacement during the assessments made by the participants, a sphere made of polyurethane foam measuring 26 cm in diameter, representing the pole cephalic, was used to fix the dilation. Internally, the vaginal canal was 4 cm long, through which the index and middle fingers were extended to achieve dilation.Previously, soft-consistency cervix models were built, as they were more realistic; they had plastisol in their composition. However, after tests carried out by more experienced students in vaginal examination, a decrease in the correct assessment rate was observed, especially in dilations with larger diameters (>6 cm). Consequently, it was decided to make hard-consistency models made of rubber, silicone and polyurethane, thus improving the students’ perception. It is worth noting that this study will be published at a later time.The authors Seven identical models with different cervical dilations were prepared to avoid external identification of each dilation. Thus, extreme and median cervical dilation measures were chosen for inclusion in the study (1.5 cm, 2.0 cm, 4.0 cm, 5.0 cm, 6.0 cm, 7.0 cm and 8.0 cm).For direct visual comparison, the CDG was used, an instrument for objective length measurement (ruler) made of transparent acrylic material, with a surface measuring 25 cm × 11 cm × 3 mm (height, width and thickness) and containing nine hollow geometric figures, oriented by diameter in the horizontal direction, corresponding to cervical dilations ranging from 1.5 cm to 9.0 cm 
