Which of the Following Iterative Search Procedures for Model Building

question 28

Multiple Choice

Which of the following iterative search procedures for model building in a multiple regression analysis starts with all independent variables in the model and then drops nonsignificant independent variables in a step-by-step manner?

• A)backward elimination
• B)stepwise regression
• C)forward selection
• D)all possible regressions
• E)backward selection

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Definitions:

Genetic Differences

Variations in the genes among individuals or populations, which contribute to the biodiversity and heritable traits within species.

Migratory Orientation

The innate or learned ability of animals, particularly birds, to navigate and migrate over long distances across changing environments.

DNA Methylation

A biochemical process involving the addition of a methyl group to the DNA molecule, affecting gene expression without changing the DNA sequence.

Epigenetic Modification

Chemical changes to the DNA or histones that affect gene expression without altering the DNA sequence, influenced by environmental factors.