Consider the Following Simple Regression Model Y = ₀

question 9

Multiple Choice

Consider the following simple regression model y = ₀ + ₁x₁ + u. The variable z is a poor instrument for x if _____.

• A)there is a high correlation between z and x
• B)there is a low correlation between z and x
• C)there is a high correlation between z and u
• D)there is a low correlation between z and u

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Definitions:

Parallel Distributed Processing

A computational approach in cognitive science that models thought processes in terms of networks that can occur simultaneously (in parallel) across multiple neural nodes.

Neurons

Nerve cells that transmit information through electrical and chemical signals in the body.

Computer Chips

Small pieces of semiconducting material (usually silicon) on which an integrated circuit is embedded, used in a wide array of electronic devices.

Retrieval Cue

Stimuli or signals that can trigger the recall of information stored in the memory, facilitating access to memories.