According to Vygotsky's theory in developmental psychology, children who use private speech are more likely to be and improve their than children who do not use private speech.

• A. impulsive; motor coordination
• B. dependent; language comprehension
• C. self-regulated; problem-solving skills
• D. distracted; memory retention

Answer: (C)

Verified step by step guidance

1. Understand the key concept of Vygotsky's theory regarding private speech, which is the self-directed speech children use to guide their own behavior and thinking.
2. Recognize that private speech is linked to the development of self-regulation, meaning children who use it are better at controlling their own actions and thoughts.
3. Identify that private speech helps children improve their problem-solving skills by allowing them to plan, monitor, and evaluate their actions internally.
4. Compare the options given and note that 'self-regulated' and 'problem-solving skills' align with Vygotsky's theory about the benefits of private speech.
5. Conclude that children who use private speech are more likely to be self-regulated and improve their problem-solving skills compared to those who do not use private speech.