What Does the Following Expression (H₀:β₁=β₂=0)mean

question 1

Multiple Choice

What does the following expression (H₀:β₁=β₂=0) mean?

• A) One of the independent variables is useful in predicting the dependent variable
• B) Both the independent variables are useful in predicting the dependent variable
• C) None of the independent variables are useful in predicting the dependent variable
• D) There is a third independent variable predicting the dependent variable

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Definitions:

Item Response Theory

A theory and related statistical models that estimate the probability of an individual responding to a specific item on a test, based on the item characteristics and the individual's latent trait level.

Rehabilitation Act

A U.S. federal law that prohibits discrimination on the basis of disability in programs conducted by federal agencies.

Appropriateness

The quality of being suitable or fitting for a particular purpose, person, occasion, etc.

Griggs V. Duke

A landmark U.S. Supreme Court case that addressed workplace discrimination and emphasized the need for employment practices, especially tests, to be related to job performance.