If We Add More Independent Variables into the Model

question 18

Multiple Choice

If we add more independent variables into the model:

• A) The R² value will decrease if the variables we are adding into the model should not be there.
• B) The R² value will increase.
• C) The adjusted R² value will increase.
• D) The R² will be biased.

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Definitions:

Between-Family Differences

Variabilities in characteristics, such as socioeconomic status, parenting styles, or resources, that exist among different families.

Adoptive Siblings

Children who are not biologically related but are brought into a familial relationship through the process of adoption by common adoptive parents.

Identical Twins

Siblings born from the same pregnancy who share the same genetic material because they were fertilized from a single zygote that split.

Behavioral Tendencies

Patterns of reaction or action that an individual consistently shows in response to a particular situation.