Based from a huge study that was done with 5,500 respondents who lived in Europe from childhood through late adulthood found that eveningness peaked at ages a. 20 to 21 years.
The study’s results mean that a lot of people are in the stage of peak alertness during the age of 20 to 21 years old. This age is the stage of a person’s life where they are in the young adulthood stage.
I’m not positive it’s on the tip of my tongue ask google
Answer: Vygotsky's theory of cognitive development
Explanation: Vygotsky's Cognitive Development Theory is the theory that states about the constructive behavior of the children to obtain the cognitive factors. Instruction ,guidance and interaction on social base is considered as the feature of the theory which enhances the learning , solving problem and other skills.
The situation mentioned in the question describes about the Vygotsky's theory because Dr Smith believes in improving the knowledge through instruction in 9-year old .
