What is the key defining characteristic of experimental research? a. Extraneous variables are never present b. Positive correlation usually exists c. A negative correlation usually exists d. Manipulation of the independent variableWhat is the key defining characteristic of experimental research? a. Extraneous variables are never present b. Positive correlation usually exists c. A negative correlation usually exists d. Manipulation of the independent variable

What is the key defining characteristic of experimental research?
a. Extraneous variables are never present
b. Positive correlation usually exists
c. A negative correlation usually exists
d. Manipulation of the independent variable
by

1 Answer

Answer :

d. Manipulation of the independent variable
by

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