The ________ Amendment forbade the states from denying any person "equal protection under the law."

Political parties enable voters to make more meaningful choices during elections

Indicate whether the statement is true or false.

. If a researcher is examining the relationship between X and Y but finds that the relationship dissipates when controlling for Z it means the relationship between X and Y is __________________.

a. Interactive b. Additive c. Spurious d. Indifferent