Final answer:
Teenagers who are rebellious, nonconforming, and philosophically concerned are typical of those in the category of Identity Diffusion on Marcia's measure.
Step-by-step explanation:
The category of teenagers who are rebellious, nonconforming, and philosophically concerned on Marcia's measure is Identity Diffusion. This category represents adolescents who have not yet explored or committed to a particular identity and are characterized by a lack of direction and low levels of self-reflection.
Teenagers in this category may reject societal norms and engage in nonconformist behavior as they search for their own values and beliefs. They may question authority, challenge traditional ideas, and explore different philosophical perspectives.
It's important to note that not all rebellious or nonconforming teenagers fall into the category of Identity Diffusion, as there are other factors to consider in Marcia's measure, such as identity foreclosure, moratorium, and achievement.