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True or False Quiz
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1
A variable must have two or more levels or values.
A)True
B)False
2
A variable is an abstract concept that must be defined in terms of the specific method used to measure or manipulate it.
A)True
B)False
3
In a negative linear relationship, the direction of the relationship changes at least once.
A)True
B)False
4
A positive linear relationship is sometimes referred to as a nonmonotonic function.
A)True
B)False
5
If two variables are confounded, you can easily determine which of the variables is operating in a given situation.
A)True
B)False
6
When the relationship between an independent variable and a dependent variable is plotted on a graph, the dependent variable is always placed on the vertical axis.
A)True
B)False
7
The ex post facto design describes research in which groups are formed on the basis of some actual difference rather than through random assignment.
A)True
B)False
8
Ethnic group is an example of a subject variable.
A)True
B)False
9
Validity refers to the accurate representation of information.
A)True
B)False
10
External validity refers to the adequacy of the operational definition of variables.
A)True
B)False





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