A researcher found that conclusions regarding his research were incorrect because a Type 1 error had been made. His error represents a type of
a. internal invalidity.
b. criterion invalidity.
c. statistical conclusion invalidity.
d. external invalidity.
Question 2
Experimental control refers to which of the following?
a. The use of random assignment to conditions
b. The conduct of research in a laboratory
c. The manipulation of the independent variable
d. The extent to which unwanted influences on the dependent variable have been eliminated.
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