Nuisance variables _________ the spread of scores within a distribution.
A) decrease
B) increase
C) first increase, then decrease
D) first decrease, then increase

Name: Nuisance variables _________ the spread of scores within a distribution. A) decrease B) increase C) first increase, then decrease D) first decrease, then increase
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Question

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Nuisance variables increase the spread of scores within a distribution because they introduce additional variability that is not related to the variables being studied.

Nuisance Variables _________ the Spread of Scores Within a Distribution