The Components of Internal Validity Are A $R ^ { 2 }$

question 28

Short Answer

The components of internal validity are a. a large sample, and BLUE property of the estimator.
b. a regression $R ^ { 2 }$ above $0.75$ and serially uncorrelated errors.
c. unbiasedness and consistency of the estimator, and desired significance level of hypothesis testing.
d. nonstochastic explanatory variables, and prediction intervals close to the sample mean.

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Definitions:

Descartes

René Descartes, a 17th-century French philosopher known for his statement "Cogito, ergo sum" and contributions to modern philosophy and mathematics.

Idealist

A person who holds the metaphysical view that mind and ideas are the ultimate reality.

Measurable

Capable of being measured or quantified.

Testable

A characteristic of a hypothesis or theory that it can be subjected to empirical experiments or observations to determine its validity or accuracy.