In the study of child development, with reference to Robert Selman's Theory of Social Perspective Taking, which age group and cognitive ability characterize the stage of 'Mutual or Third-Person Perspective Taking'?

Understanding Selman's Theory of Social Perspective Taking

Robert Selman's theory outlines the development of children's ability to understand others' viewpoints across five distinct stages (Stage 0 to Stage 4).

• Stage 3 (Mutual or Third-Person Perspective Taking): Typically emerging between 10 to 15 years of age, children develop the cognitive ability to step outside a two-person situation and imagine how a neutral, third party would view the interaction. They can simultaneously evaluate their own and another person's perspective.
• Other Stages: Stage 0 is egocentric, Stage 1 is subjective, Stage 2 is self-reflective/reciprocal, and Stage 4 involves societal/societal-symbolic perspective-taking.