In the Context of Extraneous Variables, "History" Refers to

Multiple Choice

In the context of extraneous variables, "history" refers to

A) events that can influence the dependent variable, that occur between the first and second measurement of that variable.
B) events that can influence how accurately one can control the independent variable.
C) differences in participants' knowledge of the subject matter of the experiment in which they are participating.
D) biases brought to the study by one pre-selected group and not another.