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True or False
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1

Random assignment is a method used to increase external validity.
A)True
B)False
2

In a double-blind experiment, neither the researchers nor the participants know the condition to which a given participant has been assigned.
A)True
B)False
3

All correlational studies suffer from the third variable problem.
A)True
B)False
4

Demand characteristics are a problem primarily in animal studies.
A)True
B)False
5

A correlation of 1.0 indicates that the independent variable caused the dependent variable.
A)True
B)False





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