In an experiment, a researcher can make claims about causation if:a) changing the dependent variable resulted in changes in the independent variableb) is the same regardless of the number of degrees of rotationc) changing the independent variable resulted in changes in the dependent variabled) depends on the familiarity of the object being rotated.

c) changing the independent variable resulted in changes in the dependent variable

Explanation:

Causation: In psychology, the term "causation" is determined as a process that shows a specific relationship between two different variables i.e, if any changes occur in the level of one variable then it will directly cause in the level of the other variable. However, it is feasible for the two different variables to be connected with one another without of these variables causing an "observed behavior" in the another variable.

In the question above, the given statement represents that option C is correct.

answer; i believe that the correct answer is (decreased)