Which of the following could be an independent variable in a causal claim?
A)one that is manipulated
B)one that is measured
C)one that is kept constant
D)one that has one level

Question

Quizplus · Accepted Answer

An independent variable in a causal claim must be manipulated or changed by the researcher in order to create differences between groups or conditions. This is necessary to establish a cause-and-effect relationship between the independent and dependent variables. Choice A is the only option that describes an independent variable that is manipulated.

Which of the Following Could Be an Independent Variable in a Causal