Extraneous variables may have an influence on the dependent variable. In what ways do researchers attempt to control extraneous variables? Support your answer with current literature All studies have extraneous variables and can directly affect or interfere with the study outcomes; these are of big importance in quantitative studies as they can cloud the understanding of the cause and effect relationship (Grove, Gray, & Burns, 2015). Extraneous variables are at times not seen until study is underway or completed. There are several ways to control to some degree these types of variables; random samples, intervention protocols and study design. The first way is by using random sampling that is larger rather than small and building your sample size to account for the variable. The larger...