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Home Q & A Board Science-Related Homework Help Psychology
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o2 o2
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7 years ago
All of the following are threats to the internal validity of a study except
   a.   failure to randomly assign participants.
   b.   assigning participants based on gender.
   c.   varying only the independent variable.
   d.   randomly changing several aspects of the study in addition to the independent variable.
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sleepersleeper
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7 years ago
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o2 Author
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7 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
lolaww
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Yesterday
this is exactly what I needed
Zacellison
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2 hours ago
Good timing, thanks!
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