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Home Q & A Board Laboratory Help Referencing Help
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Cremeux Cremeux
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9 years ago
Extraneous variation generally
A) reduces internal validity.
B) enhances internal validity.
C) has no effect on internal validity.
D) affects internal validity only when there are more than two levels of the independent variable.
Textbook 
Research Methods: A Process of Inquiry

Research Methods: A Process of Inquiry


Edition: 8th
Authors:
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stylezstylez
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9 years ago
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Cremeux Author
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#2
9 years ago
Excellent, what I needed. Respect
wrote...
#3
9 years ago
Happy to help Slight Smile
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