Interpret the R-Squared Value of 95.8

question 6

Multiple Choice

Interpret the R-squared value of 95.8%.

• A)The average correlation between X1,X2,X3,X4,and X5 is 0.975.
• B)95.8% of all samples would result in a useful model.
• C)95.8% of all salaries can be accurately predicted by this model.
• D)The average correlation between X1,X2,X3,X4,and X5 is 0.958.
• E)95.8% of the observed variation in salaries can be explained by this model.

Distinguish between Piaget's and Vygotsky's perspectives on cognitive development.

Describe the information-processing approach to cognitive development and its comparison to Piaget's stage theory.

Understand the concept of argument validity.

Master the construction and interpretation of truth tables.