Sample-Selection Bias Presents a Problem Because It

question 18

Multiple Choice

Sample-selection bias presents a problem because it

• A)results in OLS coefficient estimates that are biased and inconsistent.
• B)does not account for the correlation between the independent variable and the error term.
• C)does not account for the time-invariant component of the error term.
• D)does not account for the autoregressive structure of the error term.

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Definitions:

Conditioned Response

A learned reaction to a previously neutral stimulus that becomes elicited by the stimulus after repeated associations with an unconditioned stimulus.

Hypodermic Needle

This refers to a slender, hollow needle attached to a syringe, used for injecting substances into the body or extracting fluids from it.

Unconditioned Stimulus

A stimulus that naturally triggers a response without the need for prior learning.

Unconditioned Response

An automatic, natural reaction to a stimulus that occurs without any prior learning or conditioning.