Which of the following statements is not true?
a. Extraneous variables refer to outside variables that are not part of the experiment.
b. Persons or objects receiving a treatment are said to be in an experimental group.
c. Persons or objects not exposed to a treatment are said to be in a control group.
d. Internal validity refers to whether the treatment really made the difference in the measurements obtained.
e. All of these are true.
E
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Atom, Inc has a division that manufactures a component that sells for $150 and has a variable cost of $30
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Partial correlations have an order associated with them. The order indicates how many variables are being adjusted or controlled
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