Which of the Following Statements Correctly Identifies the Difference Between

question 19

Multiple Choice

Which of the following statements correctly identifies the difference between an autoregressive model and a vector autoregressive model?

• A)In an autoregressive model, the dependent variable is expressed as a function of its own lag, whereas in a vector autoregressive model, the dependent variable is expressed as a function of the lag of an explanatory variable.
• B)In an autoregressive model, the dependent variable is expressed as a function of the lag of an explanatory variable, whereas in a vector autoregressive model, the dependent variable is expressed as a function of its own lag.
• C)In an autoregressive model several series are modeled in terms of their own past, whereas in a vector autoregressive model only one series is modeled in terms of its own past.
• D)In an autoregressive model one series is modeled in terms of its own past, whereas in a vector autoregressive model several series are modeled in terms of their past.

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Definitions:

Perceptual Constancy

A tendency of the human perception system to see familiar objects as having standard shape, size, color, and location regardless of changes in the angle of perspective, distance, and lighting.

Reversibility

The ability in cognitive development to understand that actions can be reversed, restoring the original state.

Closure

The psychological term for the need to seek a clear, definitive answer to a question or resolution to an issue to find emotional peace.

Linear Perspective

A technique in art and photography that creates the illusion of depth on a flat surface, using lines converging towards a single point on the horizon.