Mexican norms for numerical scale (A: men; B: women): A: B: Mexican norms for the abstract scale (A: men; B: women): A: B: Mexican norms for spatial aptitude (A: men; B: women): A and B: Numerical Ability: Time limit: 30 minutes: End. Abstract Reasoning: Time limit: 25 minutes: End. Spatial Relations: Time limit: 30 minutes: