77. Which of the following demonstrates that a child has developed a theory of mind?

Answer: C

Explanation:

Understanding that other people's thoughts may differ from one's own.

A child demonstrates a developed theory of mind by recognizing that others can hold beliefs, desires, and intentions that are different from their own. This cognitive ability is crucial for social interactions and empathy.

A) Performing gross motor skills, such as reaching, jumping, and running.

This option is incorrect as performing gross motor skills pertains to physical development rather than cognitive understanding. It does not reflect any awareness of others' mental states or perspectives.

B) Planning responses to hypothetical situations one may encounter in the future.

While planning for hypothetical situations shows some level of reasoning, it does not specifically indicate an understanding of others' thoughts or beliefs. This option focuses more on individual cognitive processes rather than theory of mind.

C) Understanding that other people's thoughts may differ from one's own.

This option is correct as it encapsulates the essence of theory of mind. Recognizing that others have different thoughts, feelings, and perspectives is a foundational aspect of social cognition and is critical for effective communication and relationship building.

D) Knowing that the volume of a liquid does not change when it is poured from one container into a different-sized container.

This statement reflects an understanding of conservation in physical properties rather than insights into mental states. It does not demonstrate any awareness of others' cognitive processes.

E) Displaying egocentric behavior, such as speaking aloud during play.

Egocentric behavior indicates a lack of awareness of others' perspectives rather than an understanding of them. This option is, therefore, contrary to the concept of theory of mind.

Conclusion

Understanding that other people's thoughts may differ from one's own is a clear indicator of a developed theory of mind, which is essential for navigating social environments. The other options either address physical skills, individual reasoning, or fail to demonstrate an awareness of differing mental states, thus confirming why option C is the only correct answer.