_________ variables increase the variability of scores within all groups, and ________ variables change the difference between groups.
A) Extraneous; confounded
B) Extraneous; nuisance
C) Nuisance; extraneous
D) Independent; dependent

Question

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The Answer of _________ variables increase the variability of scores within all groups, and ________ variables change the difference between groups.
A) Extraneous; confounded
B) Extraneous; nuisance
C) Nuisance; extraneous
D) Independent; dependent

_________ Variables Increase the Variability of Scores Within All Groups